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	DeepSeek-R1 DeepSeek	Claude 4.8 Opus Anthropic	Gemini 3.5 Google	Gemini 3 Pro Google
Vendor	DeepSeek	Anthropic	Google	Google
Family	DeepSeek	Claude	Gemini	Gemini
Release date	2025-01-20	2026-05-28	2026-05-20	2026-04-22
Context window	128,000 tokens	1,000,000 tokens	2,000,000 tokens	2,000,000 tokens
Parameters	671B	—	—	—
Modality	text	text, vision	text, vision, audio, video	text, vision, audio, video
License	MIT	proprietary	proprietary	proprietary
Source	open weights	proprietary	proprietary	proprietary
Description	Reasoning-focused open-weight model.	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.	Google DeepMind's next-gen Gemini — positioned as "frontier intelligence with action". Built for complex agentic workflows. Announced at Google I/O 2026.	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.
Links	weights →	vendor →	vendor →	vendor →
Benchmarks
MMLU-Pro	—	—	88.9%	87.1%
GPQA-D	—	—	91.2%	88.6%
HumanEval	—	—	—	96.5%
Aider	—	—	—	84.8%
AIME-25	79.8%	—	96.1%	92.8%
LiveCB	—	—	—	76.1%
MMMU	—	—	86.0%	84.3%