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DeepSeek-V3.1×

Claude 4.8 Opus×

Mistral Large 2×

	DeepSeek-V3.1 DeepSeek	Claude 4.8 Opus Anthropic	Mistral Large 2 Mistral	o3 OpenAI
Vendor	DeepSeek	Anthropic	Mistral	OpenAI
Family	DeepSeek	Claude	Mistral	o-series
Release date	2025-08-21	2026-05-28	2024-07-24	2025-04-16
Context window	128,000 tokens	1,000,000 tokens	128,000 tokens	200,000 tokens
Parameters	671B	—	123B	—
Modality	text	text, vision	text	text, vision
License	MIT	proprietary	Mistral Research License	proprietary
Source	open weights	proprietary	open weights	proprietary
Description	Large MoE open-weight model. Predecessor to DeepSeek-V4.	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.	Reasoning-focused model in the o-series.
Links	weights →	vendor →	vendor →weights →
Benchmarks
GPQA-D	—	—	—	87.7%
HumanEval	—	—	89.0%	—
AIME-25	—	—	—	88.9%