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Claude 4.8 Opus×

DeepSeek-V4-Pro×

DeepSeek-R1×

	Claude 4.8 Opus Anthropic	DeepSeek-V4-Pro DeepSeek	DeepSeek-R1 DeepSeek	o3 OpenAI
Vendor	Anthropic	DeepSeek	DeepSeek	OpenAI
Family	Claude	DeepSeek	DeepSeek	o-series
Release date	2026-05-28	2026-04-22	2025-01-20	2025-04-16
Context window	1,000,000 tokens	1,000,000 tokens	128,000 tokens	200,000 tokens
Parameters	—	1.6T (49B active)	671B	—
Modality	text, vision	text	text	text, vision
License	proprietary	MIT	MIT	proprietary
Source	proprietary	open weights	open weights	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.	DeepSeek's flagship open-weight MoE. 1.6T parameters with 49B activated, 1M-token context, and a hybrid attention scheme (CSA + HCA) that delivers long-context inference at ~27% of V3.2's FLOPs.	Reasoning-focused open-weight model.	Reasoning-focused model in the o-series.
Links	vendor →	weights →	weights →
Benchmarks
MMLU-Pro	—	84.2%	—	—
GPQA-D	—	82.4%	—	87.7%
HumanEval	—	95.1%	—	—
Aider	—	80.1%	—	—
AIME-25	—	88.6%	79.8%	88.9%
LiveCB	—	72.4%	—	—