Models
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Models
Foundation models and notable fine-tunes - closed frontier and open weights.
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Open weights
257
Closed weights
398
Mercury 2
· Inception Ai
Closed weights
20 Feb 2026
Claude Sonnet 4.6
· Anthropic
Closed weights
17 Feb 2026
Claude Opus 4.6
· Anthropic
Closed weights
5 Feb 2026
GPT-5.3-Codex
· OpenAI
Closed weights
5 Feb 2026
Gemini 3 Flash
· Google (Alphabet Inc.)
Closed weights
17 Dec 2025
GPT-5.2
· OpenAI
Closed weights
11 Dec 2025
GPT-5.2-Codex
· OpenAI
Closed weights
11 Dec 2025
Devstral 2
· Mistral AI
Closed weights
9 Dec 2025
Gemini 3 Deep Think
· Google DeepMind
Closed weights
Undisclosed (closed)
Dec 2025
Claude Opus 4.5
· Anthropic
Closed weights
24 Nov 2025
Grok 4.1 Fast
· xAI
Closed weights
19 Nov 2025
GPT-5.1
· OpenAI
Closed weights
13 Nov 2025
GPT-5.1-Codex
· OpenAI
Closed weights
13 Nov 2025
GPT-5.1-Codex-Mini
· OpenAI
Closed weights
13 Nov 2025
Gemini 3 Pro
· Google (Alphabet Inc.)
Closed weights
Undisclosed (closed)
Nov 2025
Claude Sonnet 4.5
· Anthropic
Closed weights
Undisclosed (closed)
29 Sep 2025
Gemini 2.5 Flash Preview (Sep '25)
· Google (Alphabet Inc.)
Closed weights
25 Sep 2025
Grok 4 Fast
· xAI
Closed weights
19 Sep 2025
Qwen3 Max
· Alibaba
Closed weights
>1T (closed)
Sep 2025
Grok code Fast 1
· xAI
Closed weights
28 Aug 2025
GPT-5
· OpenAI
Closed weights
Undisclosed (closed)
7 Aug 2025
GPT-5 Mini
· OpenAI
Closed weights
7 Aug 2025
GPT-5 Nano
· OpenAI
Closed weights
7 Aug 2025
Claude 4.1 Opus
· Anthropic
Closed weights
5 Aug 2025
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