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Claude 4.6 Sonnet×

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	Claude 4.6 Sonnet Anthropic	Mistral Large 2 Mistral	Gemini Omni Google	GPT-5 OpenAI
Vendor	Anthropic	Mistral	Google	OpenAI
Family	Claude	Mistral	Gemini	GPT
Release date	2026-02-17	2024-07-24	2026-05-20	2025-08-07
Context window	1,000,000 tokens	128,000 tokens	1,000,000 tokens	400,000 tokens
Parameters	—	123B	—	—
Modality	text, vision	text	text, vision, audio, video	text, vision, audio
License	proprietary	Mistral Research License	proprietary	proprietary
Source	proprietary	open weights	proprietary	proprietary
Description	Anthropic's mid-tier flagship — released 12 days after Opus 4.6 and matching most of its capabilities at ~40% the API cost ($3/$15 per 1M tokens). 1M-token context.	Large text-only Mistral model with a 128K context window and 123B parameters, tuned for strong instruction following and long-context reasoning. Mistral's flagship open-weights release in the Large 2 line.	Multimodal Gemini variant introduced at Google I/O 2026 — unified text, image, audio, and video processing in a single model.	OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026.
Links		vendor →weights →	vendor →	vendor →
Benchmarks
MMLU-Pro	85.4%	—	—	85.1%
GPQA-D	85.8%	—	—	87.3%
HumanEval	95.9%	89.0%	—	95.2%
Aider	83.6%	—	—	85.4%
AIME-25	87.4%	—	—	91.0%
LiveCB	73.8%	—	—	74.5%
MMMU	—	—	82.5%	74.1%