AI video
Best open source alternatives to Sisif.ai 5 open-source tools, licences checked on GitHub
- Open-source tools
- 5
- Licences
- 2
- Most GitHub stars
- 2,260
- Self-host stated
- 2
Data checked Oct 14, 2026 against the vendors' own pages. How we verify
We found 5 open-source tools that share a category with Sisif.ai. Each licence is GitHub's own value for the repository, and each tool's website says the product is open source.
Licences: AGPL-3.0 (3) and MIT (2). GPL-family licences require you to publish the source of modified versions you distribute (AGPL also when you run them as a network service); permissive licences such as MIT and Apache-2.0 do not.
locally-uncensored has the most GitHub stars here (2,260, checked Oct 14, 2026). Stars measure attention on GitHub, not quality.
2 of them are ranked on the AI video generators scorecard. Order: tools in Sisif.ai's own market come first, then the rest, ranked tools by rank, then by GitHub stars.
2 tools state a self-hosting option on their own site; for the others we found no statement either way.
Open source Sisif.ai alternatives compared
| # | Tool | Licence | GitHub stars | Repository | Self-host | Paid from, monthly | Free plan | Score | Data checked |
|---|---|---|---|---|---|---|---|---|---|
| 1 |  Orkas-VideoStudio | MIT | 329 | Orkas-AI/Orkas-VideoStudio | Yes | $11.99/mo | Yes | 76/100 | Oct 14, 2026 |
| 2 |  nodetool | AGPL-3.0 | 566 | nodetool-ai/nodetool | Yes | Free | Yes | Not ranked | Oct 14, 2026 |
| 3 |  agnes-video-generator | MIT | 515 | lcy362/agnes-video-generator | – | – | – | Not ranked | Oct 14, 2026 |
| 4 |  pireel | AGPL-3.0 | 1,287 | pireel/pireel | – | $20/mo | Yes | 68/100 | Oct 14, 2026 |
| 5 |  locally-uncensored | AGPL-3.0 | 2,260 | PurpleDoubleD/locally-uncensored | – | – | Yes | Not ranked | Oct 14, 2026 |
Each value links the page it was read from (hover for the check date).
– = not published by the vendor, or not verified yet.
How each one differs from Sisif.ai
- Orkas-VideoStudio · MIT
Local-first desktop app where a team of AI specialist agents produces research, documents, slides, images and videos from chat instructions.
- Licence: MIT (GitHub, checked Oct 14, 2026) source
- GitHub stars: 329 (checked Oct 14, 2026) source
- Vendor says: "ไทย Türkçe Tiếng Việt العربية Your AI team · Open source · Local-first · Specialist agents Research, documents, slides, videos," source
- Self-host: stated on the vendor's site source
- Hosted or paid plan: $11.99 billed monthly (Lite), $1.99 more than Sisif.ai's $10 source
- Score: 76/100, #32 of 124
- Verified features: Text to video, Public API
3 of 14 tracked details verified
Homepage captured Oct 14, 2026 - nodetool · AGPL-3.0
Open-source desktop and browser workspace where an AI agent writes scripts, plans shots and generates media using the user's own model provider keys.
- Licence: AGPL-3.0 (GitHub, checked Oct 14, 2026) source
- GitHub stars: 566 (checked Oct 14, 2026) source
- Vendor says: "Pricing Blog Docs Star on GitHub Agents build. You edit. Open-source agent-first creative workspace NodeTool is a free app for making media with AI." source
- Self-host: stated on the vendor's site source
- Hosted or paid plan: free; no paid plans published source
- In numbers: 1 published plan and a free plan. source
1 of 14 tracked details verified
- agnes-video-generator · MIT
Open-source web tool that turns a text script into short videos with generated scenes, voiceover and subtitles, offered free of charge.
- Licence: MIT (GitHub, checked Oct 14, 2026) source
- GitHub stars: 515 (checked Oct 14, 2026) source
- Verified features: Text to video, AI avatars, Automatic captions
3 of 14 tracked details verified
- pireel · AGPL-3.0
AI video editor where cuts are made by conversation, covering talking-head cleanup, long-video-to-shorts, montages and product demos.
- Licence: AGPL-3.0 (GitHub, checked Oct 14, 2026) source
- GitHub stars: 1,287 (checked Oct 14, 2026) source
- Vendor says: "Pireel Pricing Open source Roadmap Sign in AI video editing studio AI editing, 100× faster Smart" source
- Hosted or paid plan: $20 billed monthly (Pro), $10 more than Sisif.ai's $10 source
- Score: 68/100, #54 of 124
- Verified features: Automatic captions, 4K export
3 of 14 tracked details verified
- locally-uncensored · AGPL-3.0
Open-source desktop AI studio for chat, image and video generation with local models, plus a hosted cloud version that runs in the browser on a credit wallet.
- Licence: AGPL-3.0 (GitHub, checked Oct 14, 2026) source
- GitHub stars: 2,260 (checked Oct 14, 2026) source
- Vendor says: "· PHONE · PACKS FROM 15 EUR See plans and packs Free and open source. No GPU? Use LU Cloud. What's new Join Discord All releases Source on GitHub" source
- Verified features: AI avatars, Public API
3 of 14 tracked details verified
How we picked
- Open source only: the licence is GitHub's SPDX value for the tool's repository (NOASSERTION or no licence is left out), and the tool's own website or our grounded summary says the product is open source. A company that merely publishes a repository is not counted.
- Same category or overlapping use: the tool lists at least one category the tool on this page lists; tools in its own market come first.
- Order: tools ranked on the category scorecard by rank (at least 60% of the weight with verified data), then by GitHub stars, then name. Stars are as of the date shown.
- Self-hosting is shown only when the vendor's site states it. A feature counts as missing only when the vendor's page states it; a feature the vendor does not mention is not listed either way.
- This page is built only when at least 3 tools qualify.
Every value is read from the vendor's own pages (or GitHub for licences and stars) and shown with the date we checked it. A value we could not verify is shown as a dash, never estimated, and never read as a “no”. We did not test these tools hands-on unless a listing says so. Methodology
The scorecard behind the ranks
Every one of these AI video generators is scored by the same 8 criteria (scorecard v2). Each criterion gives 0 to 100 from the vendor's published data; the total is the weighted average. A criterion without verified data is left out and the other weights are re-normalised. A tool with under 60% of the weight covered is listed as not ranked, and so is a tool with no verified price and fewer than 2 verified features (“needs a verified price”); each score shows how many criteria it is based on. The core criteria are the same in every category; the category criteria are specific to AI video generators. Nobody gets custom weights, including our own products.
| Criterion | Weight | Type | What we measure |
|---|---|---|---|
| Entry price | 25% | Core | Price per month of the cheapest paid plan, against the prices of other AI video generators on the same billing basis (monthly-billed prices against monthly, annual-billed against annual).Log scale. Billed monthly: $9/month or less = 100, $39 or more = 0. Only billed annually: $4.50/month or less = 100, $25 or more = 0. Only free plans = 100. Usage-priced and one-time plans are not scored. |
| Free plan or trial | 15% | Core | Whether you can use the tool before paying: a free plan, or failing that a free trial, as shown on the vendor's pricing page.Free plan = 100. No free plan but a free trial = 60. The pricing page lists plans but shows neither = 0. No plans read = not scored. |
| Pricing transparency | 10% | Core | How much of the pricing is public: the share of plans with a published price ("contact sales" counts against), and whether there are at least 3 published tiers.80 x (plans with a public price / plans listed) + 20 x (public plans, up to 3) / 3. No plans read = not scored. |
| Verified features | 15% | Core | How many of the 8 features we track for this category the vendor's own pages verifiably show (text to video, ai avatars, voice cloning, automatic captions, ai dubbing / translation, 4k export, no watermark on paid plans, brand kit). This counts verified features only: a tool that documents less scores lower here, and only here.Linear: verified features / 4 (half the tracked list) x 100, capped at 100. No tracked feature verified = not scored. |
| API, integrations and export | 10% | Core | Whether a public API exists, how many integrations the vendor states, and whether the vendor documents a way to export your data.Average of the parts with data: public API yes = 100, no = 0; integrations on a log scale (50 or more = 100); a documented data export = 100. None verified = not scored. |
| Cost per video minute | 10% | Category | Price per video minute on the cheapest paid plan that states a monthly minutes limit (monthly price / allowance).Log scale: $0.50 per video minute or less = 100, $10 or more = 0. Unlimited or unstated allowances = not scored. |
| Languages | 10% | Category | Number of languages the vendor says it offers.Linear scale: 100 or more = 100. No stated count = not scored. |
| Avatar library | 5% | Category | Number of stock avatars the vendor says it offers.Linear scale: 200 or more = 100. No stated count = not scored. |
Sources are vendor pricing pages, docs and changelogs, each with the date we checked it. We did not test these tools hands-on unless a listing says so. Full formulas: methodology.
Questions, answered from the data
Is there an open source alternative to Sisif.ai?
Yes: 5 open-source tools share a category with Sisif.ai, led by Orkas-VideoStudio, nodetool and agnes-video-generator.
Which open source Sisif.ai alternative is most popular on GitHub?
locally-uncensored, with 2,260 GitHub stars (checked Oct 14, 2026).
Which licences do these alternatives use?
AGPL-3.0: 3 and MIT: 2, as GitHub reports them for each repository.
Which ones can I self-host?
Orkas-VideoStudio and nodetool state a self-hosting option on their own site.