Genspark vs Gamma vs Manus for AI Slides (October 2026)

Disclosure: NOXI publishes this comparison and appears in it as a fourth, free option. NOXI gets one labelled section and is kept out of the three-way rounds and their winners. We ran no hands-on trials. Every fact about Genspark, Gamma and Manus comes from their own help centres, blogs and pricing pages, checked on 28 September 2026, plus dated third-party sources we name wherever an official page couldn't be read automatically.

Genspark vs Gamma vs Manus: the verdict at a glance

Gamma wins on design polish, sharing and entry price. Manus wins on research depth and PowerPoint-first output. Genspark wins on breadth, and Gen-1 halved the credit cost of its Standard-mode drafts. No tool wins the free plan outright, because each one rations it differently.

Genspark's free plan gives 100 credits a day "until your lifetime free-credit allowance is used up". Genspark and Gamma dollar prices come from dated third-party trackers because their pricing pages couldn't be read automatically; Manus prices come from its help centre. "No paywall listed" means Manus documents PPTX and PDF export without naming a plan requirement. See sources.

What changed in September 2026

One real launch and two quieter shifts. Genspark shipped its own slide model, Gamma kept widening where you can make a deck, and Manus is back to being an independent company after a blocked acquisition.

Genspark: Gen-1 Slides becomes the Standard model

On 10 September 2026 Genspark and Fireworks AI announced Gen-1 Slides. Genspark's help centre now describes two quality modes in AI Slides: Standard, "fast and economical", which "uses 0.5× credits using Genspark Gen-1 model", and Ultra, "with stronger reasoning and output", which uses 1.0× credits and keeps offering frontier models from other labs such as Claude Opus 5.

Genspark says Gen-1 "ranks first in 8 of 9 internal and public benchmark comparisons". Treat that as the vendor's own evaluation, not an independent benchmark. The breakdown reported by NextAIPress is more useful than the headline: Gen-1 scored higher than Claude Opus 5 on visual design (0.756 vs 0.688), while Opus 5 scored higher on task completion (0.849 vs 0.780) and content quality (0.782 vs 0.737). The economics explain why Genspark built it: a list price of $0.30 per million input tokens against $5.00 for Opus 5, at a volume Genspark puts at up to 120,000 decks on a peak day.

What it means for you: Standard mode is now a solid default for design-led decks and costs half the credits. For decks where the argument matters more than the look, Genspark's own numbers suggest Ultra is worth its 1.0× rate.

Gamma: decks from Slack and from your phone

Gamma had no major presentation launch in September; its recent additions widen where decks start. With the Gamma Slack app, you type @Gamma in a thread and get a deck built from the conversation. Gamma's iOS and Android apps are in early access (US and Canada, English only, per its help centre) and can generate, edit through Agent, present and export.

Manus: PowerPoint mode and independence

Manus's PowerPoint mode (announced on its blog on 14 July 2026) generates a .pptx "from the start", with "editable charts, structured tables, and AI-generated visuals". It launched in beta "for users on the 1.6 and Max models". On the corporate side, Meta agreed to buy Manus in December 2025, China blocked the deal in April 2026, and in August 2026 Manus said it would return to operating as an independent company, according to CNBC. TechCrunch reported that Manus kept shipping features through the separation.

What each tool actually is

Genspark and Manus are AI agents that also make slides; Gamma is a presentation and web-page tool that added an agent.

Genspark AI Slides

Genspark is an AI agent workspace, and AI Slides is one of its tools next to sheets, docs and websites. AI Slides has two design directions: Professional ("clean, structured, business-oriented") and Creative, which adds aspect ratios from 16:9 and 4:3 to 1:1, 9:16 and 21:9 for social formats. A Guide Mode turns the AI into a consultant that asks structured questions before generating. It converts PDF, Word, Excel and PowerPoint files into decks, and a verification step checks figures "against the web or against the files you uploaded" and leaves a verification mark with reference links on each checked slide.

Gamma

Gamma is a dedicated tool for presentations, documents, websites and social posts, built on flexible "cards" rather than fixed slides. You describe a topic or paste notes, pick a theme, and Gamma produces an illustrated draft. Its Agent handles "researching, writing, designing, and generating images", asks clarifying questions, shows a plan for the story and style first, and makes targeted edits such as "tighten the exec summary". Gamma Imagine (March 2026) adds AI-generated brand graphics.

Manus Slides

Manus is a general autonomous agent. Its documentation says Manus Slides "conducts research, develops content, designs slides, generates visuals, and writes detailed speaker notes", taking 5–15 minutes depending on complexity. It starts from a one-line request, a detailed brief, spreadsheets (including Google Sheets through a connector), PDFs, URLs or notes, and it can apply your own .pptx template's layouts, colours and fonts.

Round 1 — Content and research

Manus goes deepest, Genspark checks most visibly, and Gamma is quickest to a readable draft. All three can research on the web now, so the difference is how much time and checking each puts into it.

Manus treats a deck as a research task: it plans, browses, drafts and designs in one autonomous run, then hands over the deck with speaker notes. That suits briefs like "compare the five largest competitors in this market and recommend one".

Genspark can research as an agent too, and its verification step is the most visible fact-checking of the three: it marks each checked slide and links the references it used. The Gen-1 numbers matter here: by Genspark's own scores, Opus 5 scored higher on content quality, so switch to Ultra for decks where the reasoning is the product.

Gamma Agent researches, writes and designs while narrating its progress. Its strength is turning a brief into a fluent, good-looking first draft quickly rather than running a long investigation.

Round 2 — Design and layouts

Gamma produces the most polished web-native decks; Genspark now competes hard on visual design and offers the most formats; Manus designs around templates.

Gamma is design-first. Themes, AI imagery and a card system refined over years make drafts look finished from the start. Cards grow like web pages, so a Gamma deck reads especially well as a link or a website.

Genspark made design the headline of Gen-1: visual design is the one category where Genspark says Gen-1 beat Claude Opus 5. Professional mode keeps business decks clean and structured; Creative mode adds richer colour and imagery plus square, vertical and ultra-wide formats for social posts and screens.

Manus leans on templates, either its own pre-built ones or your .pptx, and on data: charts backed by tables and structured tables with proper cells. Expect a deck that reads like a well-organised report more than a showpiece.

Round 3 — Editing

Genspark and Gamma both have real visual editors; Manus expects you to edit by conversation or in PowerPoint. This round is a draw between the first two.

Genspark's Advanced Edit is a canvas editor: click to select, drag to move, format text, crop images and change their focus, edit speaker notes, with full undo and redo. Genspark states that "manual edits in Advanced Edit are free", so you can polish a deck by hand without spending credits.

Gamma's editor is mature: drag cards and blocks, change layouts, swap images, restyle with a theme, and ask Agent for targeted edits without rewriting the deck. One detail from Gamma's help centre: exports follow Present Mode, not the editor, so check the deck in Present Mode before you download it.

Manus keeps editing conversational (you ask for changes in the chat) or hands it to PowerPoint. In PowerPoint mode, clicking a chart shows "Elements" and "Edit Data" controls, with a spreadsheet overlay on the slide.

Round 4 — Templates and brand

All three now accept your own design material, each in a different form. Which one fits depends on where your brand lives today.

Genspark lets you upload an existing PowerPoint or PDF to create a reusable Skill, which packages "expert thinking + design" rather than only a look. It ships more than 100 built-in Skills for corporate, sales, training and other scenarios. Team Skills (Team and Enterprise plans) publish approved Skills across an organisation after admin review.

Gamma builds custom themes with your colours, fonts, slide styles and accent images, and you can create a workspace theme by importing a PowerPoint or Google Slides file. Logos go in headers and footers, which Gamma lists as a Pro feature. Its rebuilt import also brings in whole .pptx, .docx and PDF files; Gamma says imported decks keep their layouts "much more faithfully than before" and stay editable.

Manus takes a custom .pptx template and applies "your layouts, colors, and fonts" to what it generates.

Round 5 — Export and the free-plan catch

Genspark's free plan can't export PPTX or PDF; Gamma's free exports carry a badge; Manus documents native PowerPoint export without naming a plan requirement. This is the round most people discover only after they've built the deck.

Genspark. The help centre is direct: "Credits are only consumed by AI generation. However, exporting to PPTX/PDF requires a paid plan." Paid plans export PDF, PPTX and Google Slides, and exporting doesn't cost credits. So "Genspark free export" has a short answer: on the free plan you can generate and edit, but to download the file you need Plus or higher. A January 2026 review by Deckary reported font substitutions, spacing issues and layout shifts after PPTX and PDF export; that review predates Gen-1, and we found no newer independent check.

Gamma. Exports go to PDF, PNG or PowerPoint, and to Google Slides by uploading the .pptx. On the Free plan, "the 'Made by Gamma' badge appears on PDF and PPTX exports"; any paid plan removes it. Gamma embeds theme fonts in the .pptx, but Google Slides ignores embedded fonts and substitutes its own. Editable tables export with sharp corners, because PowerPoint doesn't support rounded table corners. For why card-based designs need a check after export, see our AI PowerPoint generator guide.

Manus. PowerPoint is the starting format, not a conversion: "The .pptx is the output from the start." Manus lists PPTX, PDF, web slides and a separate speaker-notes document as outputs. It doesn't document export as a paid feature; on the free plan, what you can do is set by the 300 daily refresh credits and by which models your plan can use.

Round 6 — Pricing compared (September 2026)

Gamma is cheapest to start, Manus sits in the middle, and Genspark's plans cost the most because they buy a whole agent workspace. Credits aren't comparable between tools, so compare what each plan unlocks.

Genspark. Credit amounts, the free-plan rule and the ~20% annual saving are from Genspark's membership page, which says these terms are valid through 30 June 2027. Dollar prices are from Lindy's tracker (updated 31 August 2026). Standard mode on Gen-1 costs half the credits of Ultra for the same request, so a Plus plan goes roughly twice as far on Standard.

Gamma. Free is 400 credits that don't refresh (referrals add more), paid credits refill monthly and roll over up to twice the plan size, and annual billing saves up to 28%, all per Gamma's help centre. Dollar figures are ranges from third-party trackers, because monthly and annual prices differ.

Manus. Prices, credits and the 17% annual discount come from Manus's own help centre (updated 16 March 2026). The $40 Pro tier comes with a seven-day free trial.

Worked example: one deck, four free plans

Illustrative scenario, not a hands-on trial. Plan rules are from each vendor's pages as of 28 September 2026.

Maya, a product marketer, needs a 12-slide competitive overview by Friday. Her manager wants a .pptx to drop into the quarterly business review, and her budget is $0. Here's how each free plan handles the job.

What Maya learns. On Genspark, the draft is free but the file needs Plus. On Gamma, she gets the file with a badge her manager will see, and her one-time credits shrink with every deck. On Manus, daily credits cover the deck, but she should confirm her free account can run PowerPoint mode, which launched for the 1.6 and Max models. For sourced figures and a .pptx without a badge at $0, see NOXI below.

The other match-ups: Genspark vs Manus, Manus vs Gamma

Genspark vs Manus: both are agents, so choose by output. Genspark is better when you want to shape the deck visually, with a free canvas editor, Professional and Creative styles, social formats and team Skills. Manus is better when you want to hand over a research brief and get back a native .pptx with notes. Genspark also has the more generous paid tiers for heavy users; Manus has the cheaper entry ($20 against Genspark's $24.99 monthly).

Manus vs Gamma: Gamma is faster, cheaper and more polished for communication decks and anything shared as a link. Manus is better for analytical decks built from spreadsheets and reports that someone will keep editing in PowerPoint. If you want both, research in Manus and restyle in Gamma by importing the .pptx. For more options beyond these three, see our ranked Gamma alternatives and the best AI presentation makers of 2026.

Where each tool is genuinely strongest

Each tool leads somewhere, and picking by that strength beats picking by the overall winner.

• Genspark: breadth (slides, sheets, docs and sites in one workspace) · cheap Standard-mode drafts on Gen-1 · a free manual editor · visible fact-check marks with reference links · Creative mode's social and screen formats · Team Skills for consistent company decks.
• Gamma: the most polished themes · decks that double as websites and documents · permissions, sharing and a Slack app · mobile apps · the lowest paid entry · a large ecosystem built up over years.
• Manus: long autonomous research · a .pptx generated natively, with tables and data-backed charts you can edit · your own .pptx template applied · speaker notes as a separate document · generous daily free credits.

Who should pick which

Match the tool to the job, not to the hype. Here are the common cases.

Where NOXI fits: a free option that exports the file

NOXI is a dedicated AI presentation maker that is free with every feature, including a PowerPoint export that matches the slide. It isn't an agent workspace like Genspark or Manus, or a web-page tool like Gamma. It does one job: decks you can present, defend and hand over as a file.

Content is written by Claude Opus and GPT-5.5, with images by Nano Banana Pro. NOXI researches the topic and puts the source link for each figure on the slide, so a reviewer can click through instead of asking where a number came from. It designs consulting-grade analytical layouts: strategy houses, funnels, Gantt timelines, scorecards, comparison tables and data charts. It builds from your own PDFs, Word files, Excel and CSV data, notes and images, and you edit by chat ("turn this into a timeline") or by hand in a drag-and-drop editor, on a laptop or a phone.

You can also upload your own template, or any PDF or PPTX, and NOXI builds the new deck in that style: a client's master, last year's board pack, or a report whose look you like. Arabic works at design level, with right-to-left mirroring of timelines, arrows and tables. Everything is free: no paid credits, no watermark, no export paywall, no card.

Picking by job: for a website or a deck that lives as a link, Gamma; for a long autonomous research run, Manus; for one workspace across many document types, Genspark. For a deck with sourced figures, analytical layouts and a free .pptx, NOXI. The two-tool comparison is in NOXI vs Gamma.

What a pixel-perfect PowerPoint export means

NOXI rebuilds every slide as real PowerPoint objects with its own export engine. It doesn't print a PDF and convert it, and it doesn't paste pictures of slides.

• The file matches the slide you approved: same layout, spacing, colours and typography on real 16:9 slides.
• Text stays live. Click any headline or bullet in PowerPoint and edit it.
• Fonts are embedded in the .pptx, so the deck looks the same on a computer without them. Arabic letters stay connected and right-to-left order is kept.
• Images keep their original quality, and the file opens in PowerPoint without a repair prompt.
• PDF and a share link are included, all free and without a watermark.

Few AI presentation tools do this. It matters most when the file leaves your hands: the client, board or professor opens exactly what you approved and can keep editing it.

How to make a comparison deck in NOXI

Six steps from brief to file. The same sequence works for any analytical deck, not only tool comparisons.

Copy-ready prompts (they work in all four tools)

Specific briefs make every tool better. Replace the brackets with your details.

Choose in 60 seconds

Answer in order. The first "yes" is your tool.

What we couldn't verify

These points are open as of 28 September 2026. We'll update the page when the vendors document them.

• Official dollar prices for Genspark and Gamma. Both pricing pages blocked automated reading, so prices come from dated third-party trackers. Genspark's credit amounts and Gamma's credit rules come from their own help centres.
• Manus free-plan export. Manus documents PPTX and PDF export without naming a plan, and doesn't say whether free accounts can run PowerPoint mode, which launched for the Manus 1.6 and Max models.
• Gen-1 benchmarks. All Gen-1 scores are Genspark's own evaluations; we found no independent benchmark yet.
• Genspark export quality after Gen-1. The only detailed independent export review we found (Deckary, January 2026) predates the new model.

Related guides

• Best Gamma alternatives, ranked
• Claude Slides vs Gamma
• Best free AI presentation makers
• AI presentations in your own template

Frequently asked questions

Is Genspark better than Gamma for slides?

It depends on the job. Genspark is better if you want one AI agent for slides, sheets, docs and sites, a free manual editor and social formats. Gamma is better for polished decks shared as links or websites, team sharing and a lower paid entry price. Gamma's free plan also lets you download files, with a badge.

Is Genspark free?

Partly. Genspark's free plan gives 100 credits a day until a lifetime free-credit allowance is used up, and you can generate and edit slides with them. Exporting to PPTX or PDF requires a paid plan. Plus costs $24.99 a month, or $19.99 billed annually, according to third-party trackers.

Can I export Genspark slides to PowerPoint for free?

No. Genspark's help centre says exporting to PPTX or PDF requires a paid plan. Paid plans export PDF, PPTX and Google Slides, and exporting doesn't consume credits. On the free plan you can generate and edit a deck, but not download it as a file.

What is Genspark Gen-1 Slides?

Gen-1 Slides is Genspark's first in-house AI model for presentations, announced on 10 September 2026. It's MiniMax M3 post-trained with Fireworks AI and is the default model in AI Slides' Standard mode, which uses 0.5× credits. Genspark says it rivals Claude Opus 5; those benchmarks are Genspark's own.

Genspark vs Manus: which is better for slides?

Genspark is better for shaping a deck visually, with a free canvas editor, Professional and Creative styles and team Skills. Manus is better for handing over a research brief and getting back a native .pptx with speaker notes. Manus starts at $20 a month; Genspark Plus at $24.99.

Is Manus better than Gamma for presentations?

For research-heavy, data-driven decks that will be edited in PowerPoint, yes: Manus researches autonomously and generates a native .pptx with editable tables and charts. For polished communication decks, sharing as links or websites, and a lower price, Gamma is the better choice.

Is Gamma free, and does it add a watermark?

Gamma has a free plan with 400 one-time credits that don't refresh. On the Free plan a "Made by Gamma" badge appears on PDF and PowerPoint exports. Any paid plan removes the badge and refills credits monthly.

How much do Genspark, Gamma and Manus cost?

As of September 2026: Genspark Plus $24.99 a month ($19.99 annually) and Pro $249.99; Gamma Plus about $8–10, Pro about $15–20 and Ultra about $90–100 per seat, depending on billing; Manus Pro from $20 or $40 a month and Team from $20 per seat. All three have free plans.

Can Manus make PowerPoint slides?

Yes. Manus's PowerPoint mode, launched in beta for the Manus 1.6 and Max models, generates a .pptx from the start with editable charts, structured tables and AI-generated visuals. It can also apply your own .pptx template and export PDF, web slides and a speaker-notes document.

Is there a free alternative to Genspark and Gamma that exports PowerPoint?

Yes. NOXI is free with every feature, including export. It writes with Claude Opus and GPT-5.5, puts a source link for each figure on the slide, can build the deck in the style of any PDF or PPTX you upload, and exports a PowerPoint that matches the slide exactly, with live text and embedded fonts, without a watermark.

Sources & methodology

This is an editorial comparison, not a lab trial: we ran no hands-on tests. Facts about each tool come from its own help centre, documentation, blog and pricing pages, checked on 28 September 2026. Where an official pricing page couldn't be read automatically (Genspark, Gamma), prices come from dated third-party trackers, named below. Gen-1 benchmark figures are Genspark's own. Prices and plan rules change often, so check each vendor's page before you buy.

• Genspark AI Slides modes, editing, Skills, verification and export rules — Genspark Help Center: AI Slides.
• Gen-1 Slides model, Standard and Ultra modes — Genspark Help Center: Gen-1 Slides; Genspark blog: Introducing Gen-1 Slides.
• Gen-1 launch date, benchmark breakdown, token prices and deck volume — NextAIPress (10 September 2026).
• Genspark free plan, credits and annual saving — Genspark Help Center: membership plans.
• Genspark USD prices (third-party, updated 31 August 2026) — Lindy: Genspark pricing.
• Genspark export quality (January 2026 review) — Deckary: Genspark review.
• Gamma export formats, badge, fonts and Present Mode — Gamma Help Center: exporting.
• Gamma plans, credits, rollover and annual discount — Gamma Help Center: plans.
• Gamma Agent — Gamma Help Center: creating with Agent.
• Gamma themes and imports — custom colours and fonts; importing slides and content.
• Gamma Slack app and mobile apps — Gamma with Slack; Gamma mobile app.
• Gamma Imagine (March 2026) — TechCrunch.
• Gamma USD prices (third-party, 2026) — eesel AI; Flowith.
• Manus PowerPoint mode (14 July 2026) — Manus blog; Manus Slides workflow, templates and export formats — Manus documentation: Slides.
• Manus plans and prices — Manus Help Center: membership pricing; No Code MBA (updated 25 September 2026).
• Meta, China and Manus — CNBC (27 April 2026); TechCrunch (13 June 2026); CNBC (11 August 2026).

Try NOXI free. Decks written by Claude Opus and GPT-5.5, a source link for every figure, consulting-grade layouts, your own template's style, and a PowerPoint file that looks exactly like your slides. No watermark and no export paywall.