Comparison
Cloudflare Clef vs GPT-6.1 Sol
People have published 126 builds with Cloudflare Clef and 44 with GPT-6.1 Sol, overlapping in 7 use cases. Cloudflare Clef has more education, research examples; GPT-6.1 Sol has more coding.
Clef (27B) and Clef-flash (9B) are Cloudflare-trained open-weight (Apache 2.0) multimodal decision models: given a state and typed questions they return bounded structured answers with probabilities in one forward pass, Jev/System One API compatible, hosted on Workers AI with a 64k context. Launched alongside a new RL fine-tuning platform.
- 126
- Entries
- 118
- Creators
- GitHub, YouTube, Hacker News
- Top source
Successor to GPT-6 Sol, announced at OpenAI DevDay on 2026-09-29 with near-Astra intelligence for a fifth of the price: $2 input and $10 output per million tokens, a 1.05M-token context window and five reasoning levels. Rolled out in ChatGPT Work, Codex and the API.
- 44
- Entries
- 42
- Creators
- GitHub, YouTube, X
- Top source
Same use case, side by side
Top builds with Cloudflare Clef
- 1Cloudflare Just Challenged Jev, So I Tested Their New Model (Clef)on YouTube:Better Stack· 64K views
- 2Say Hi to Clef. Better Open Source Jevon YouTube:CoderOne· 19.6K views
- 3Clef: Open-source decision models, and new RL fine-tuning platformon YouTube:Signal Coders· 17.3K views
- 4Cloudflare Clef: Free Open Source AI Decisions in 38mson YouTube:Prism Labs· 13.9K views
- 5Cloudflare Clef : The #1 Open Source Alternative to Jev Is Hereon YouTube:Codedigipt· 10K views
Top builds with GPT-6.1 Sol
- 1GPT-6.1 Sol Is So Weirdon YouTube:Can It Code?· 94.3K views
- 2Artificial Analysis on X: Sol replaces GPT-6 Sol after seven dayson X:Artificial Analysis· 2K likes
- 3GPT 6.1 Sol or Opus 5.5? One Got Gappedon YouTube:Can It Code?· 41.7K views
- 4I Tested NEW GPT-6.1 Sol on Coding. I'm Shocked.on YouTube:AI Coding Daily· 27.1K views
- 5GPT-6.1 Sol builds the same 3D scene at every effort levelon YouTube:Code Bear· 24.6K views
