# Best free Chai-1 (Chai Discovery) alternatives

8 free alternatives to Chai-1 (Chai Discovery) and 1 more. Chai-1 (Chai Discovery) is free tier + paid.

## Alternatives

- [AlphaFold Server](https://aitools.flocci.in/tool/alphafold-server) — Free — Free browser-based access to AlphaFold 3-class structure prediction for non-commercial research
- [Biomni](https://aitools.flocci.in/tool/biomni) — Free — General-purpose biomedical agent combining LLM planning with code execution
- [Boltz](https://aitools.flocci.in/tool/boltz) — Free — First fully open-source model to approach AlphaFold3-level structure prediction, MIT-licensed
- [Kosmos (Edison Scientific / FutureHouse)](https://aitools.flocci.in/tool/kosmos-edison-scientific-futurehouse) — Paid — Autonomous AI agent that runs literature review + data analysis cycles, condensing ~6 months of research into a day per vendor
- [Evo 2](https://aitools.flocci.in/tool/evo-2) — Free — DNA language model at single-nucleotide resolution with 1M base-pair context
- [AI Scientist-v2](https://aitools.flocci.in/tool/ai-scientist-v2) — Free — Agentic tree search proposes ideas, runs experiments and writes papers
- [Scira](https://aitools.flocci.in/tool/scira) — Free — Free, no credit card required
- [Morphic](https://aitools.flocci.in/tool/morphic) — Free — Open-source, Apache 2.0, self-hostable generative-UI search engine
- [Metaso AI Search (Mita)](https://aitools.flocci.in/tool/metaso-ai-search-mita) — Free — Ad-free AI search with direct answers

## FAQ

### What is the best free alternative to Chai-1 (Chai Discovery)?

AlphaFold Server is the closest free alternative to Chai-1 (Chai Discovery): same Science & Research AI sub-category, and it is free. Free browser-based access to AlphaFold 3-class structure prediction for non-commercial research

### Are there free Chai-1 (Chai Discovery) alternatives?

Yes — 8 of the 9 alternatives listed here are free or freemium: AlphaFold Server, Biomni, Boltz, Evo 2, AI Scientist-v2. The other 1 are trial or paid.

### Is Chai-1 (Chai Discovery) free?

Chai-1 (Chai Discovery) is free tier + paid. There is a free tier you can work in, with paid plans above it.

### How were these Chai-1 (Chai Discovery) alternatives chosen?

They are the other tools in Science & Research AI, then the rest of Research & Learning, ordered free tiers first and capped at 9. There is no sponsorship and no paid placement in that ordering — only the pricing tier decides.

## Related

- [Chai-1 (Chai Discovery)](https://aitools.flocci.in/tool/chai-1-chai-discovery)
- [Science & Research AI](https://aitools.flocci.in/category/research-learning/science-research-ai)
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Source: Flocci AI Tools — https://aitools.flocci.in/alternatives/chai-1-chai-discovery

Facts last verified: October 2026