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	Claude 4.6 Sonnet Anthropic	Mistral Large 2 Mistral	Qwen3.6-27B Alibaba	Grok 4 xAI
Vendor	Anthropic	Mistral	Alibaba	xAI
Family	Claude	Mistral	Qwen	Grok
Release date	2026-02-17	2024-07-24	2026-04-22	2025-07-09
Context window	1,000,000 tokens	128,000 tokens	262,144 tokens	256,000 tokens
Parameters	—	123B	27B (dense)	—
Modality	text, vision	text	text, vision, video	text
License	proprietary	Mistral Research License	Apache-2.0	proprietary
Source	proprietary	open weights	open weights	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.	Alibaba's first dense open-weight in the 3.6 family. Strong agentic-coding scores (77.2 SWE-bench Verified, matching Claude 4.5 Opus on Terminal-Bench 2.0). Supports 201 languages and multimodal text/image/video input.	—
Links		vendor →weights →	weights →	vendor →
Benchmarks
MMLU-Pro	85.4%	—	78.9%	82.8%
GPQA-D	85.8%	—	—	87.5%
HumanEval	95.9%	89.0%	91.5%	—
Aider	83.6%	—	70.2%	72.5%
AIME-25	87.4%	—	—	86.1%
LiveCB	73.8%	—	—	65.3%
MMMU	—	—	70.3%	—