AI Scientist-v2 vs Boltz

AI Scientist-v2 is free, with no paid plan attached. Boltz is free, with no paid plan attached. Both are listed under Science & Research AI, so this is a like-for-like comparison. Neither is ranked above the other — Flocci carries no sponsored placement.

AI Scientist-v2 vs Boltz — straight answers

AI Scientist-v2 vs Boltz: what is the difference?

AI Scientist-v2 is free, with no paid plan attached and is listed for agentic tree search proposes ideas, runs experiments and writes papers. Boltz is free, with no paid plan attached and is listed for first fully open-source model to approach AlphaFold3-level structure prediction, MIT-licensed. Both sit in Science & Research AI.

Is AI Scientist-v2 or Boltz cheaper to start with?

Neither — AI Scientist-v2 and Boltz are both free, so the choice comes down to capability rather than cost. Both entries list what they uniquely do above.

Which should I choose, AI Scientist-v2 or Boltz?

Choose AI Scientist-v2 if you need agentic tree search proposes ideas, runs experiments and writes papers; choose Boltz if you need first fully open-source model to approach AlphaFold3-level structure prediction, MIT-licensed. Flocci AI Tools does not rank one above the other — it shows both feature sets side by side and lets the requirement decide.

AI Scientist-v2 compared with Boltz: pricing tier, category, listed capabilities and links.
 AI Scientist-v2Boltz
Pricing tierFreeFree
Free to startYesYes
CategoryResearch & LearningResearch & Learning
TypeScience & Research AIScience & Research AI
Listed capabilities
  • Agentic tree search proposes ideas, runs experiments and writes papers
  • No human-authored templates needed
  • Open code from Sakana AI
  • Requires disclosure of AI use in resulting papers
  • First fully open-source model to approach AlphaFold3-level structure prediction, MIT-licensed
  • Boltz-2 adds binding-affinity prediction, not just structure
  • Hostable free via community web apps (e.g. Tamarind Bio) or run locally
Tagsai scientist v2, sakana ai scientist, automated scientific discovery, autonomous research agent, open source ai researcherboltz protein model, open source alphafold alternative, biomolecular structure prediction, boltz-2 binding affinity, open protein folding
Websitegithub.comgithub.com
Full pageAI Scientist-v2 details →Boltz details →
AlternativesAI Scientist-v2 alternatives →Boltz alternatives →

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Biomni

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Evo 2

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  • DNA language model at single-nucleotide resolution with 1M base-pair context
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  • Apache 2.0 code, weights and training data open; published in Nature

Chai-1 (Chai Discovery)

Science & Research AI
freemium
  • Chai-1 is free, Apache-2.0-licensed for academic and commercial use — a genuinely open structure-prediction model
  • Chai-2 (paid, enterprise) generates de novo antibodies directly from target epitopes, used by Lilly, Novartis, Pfizer
freemiumLeaving soon
  • Autonomous AI agent that runs literature review + data analysis cycles, condensing ~6 months of research into a day per vendor
  • Publicly available via web interface and API, not an internal-only research demo
  • Generous free tier committed by Edison Scientific, the commercial spinout now running the platform