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Claude 4.8 Opus×

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	Claude 4.8 Opus Anthropic	Mistral Large 2 Mistral	Gemini 3 Pro Google	GPT-5 OpenAI
Vendor	Anthropic	Mistral	Google	OpenAI
Family	Claude	Mistral	Gemini	GPT
Release date	2026-05-28	2024-07-24	2026-04-22	2025-08-07
Context window	1,000,000 tokens	128,000 tokens	2,000,000 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 flagship hybrid-reasoning model — Opus 4.8 pushes coding and AI-agent workflows further (agentic coding 69.2% vs 64.3% on 4.7; multidisciplinary reasoning 57.9% vs 54.7%). 1M-token context, $5/$25 per MTok pricing held flat from Opus 4.7. Introduces Dynamic Workflows for Claude Code (research preview). GA on Anthropic API (`claude-opus-4-8`), AWS Bedrock, Google Vertex, Microsoft Foundry, and GitHub Copilot.	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.	Google DeepMind's flagship multimodal model. Best-in-class for multimodal understanding and agentic / vibe coding workflows. A "Deep Think" reasoning mode is available to AI Ultra subscribers.	OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026.
Links	vendor →	vendor →weights →	vendor →	vendor →
Benchmarks
MMLU-Pro	—	—	87.1%	85.1%
GPQA-D	—	—	88.6%	87.3%
HumanEval	—	89.0%	96.5%	95.2%
Aider	—	—	84.8%	85.4%
AIME-25	—	—	92.8%	91.0%
LiveCB	—	—	76.1%	74.5%
MMMU	—	—	84.3%	74.1%