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Claude 4.8 Opus×

DeepSeek-V4-Pro×

Claude 4.6 Sonnet×

	Claude 4.8 Opus Anthropic	DeepSeek-V4-Pro DeepSeek	Claude 4.6 Sonnet Anthropic	o3 OpenAI
Vendor	Anthropic	DeepSeek	Anthropic	OpenAI
Family	Claude	DeepSeek	Claude	o-series
Release date	2026-05-28	2026-04-22	2026-02-17	2025-04-16
Context window	1,000,000 tokens	1,000,000 tokens	1,000,000 tokens	200,000 tokens
Parameters	—	1.6T (49B active)	—	—
Modality	text, vision	text	text, vision	text, vision
License	proprietary	MIT	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.	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.	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.	Reasoning-focused model in the o-series.
Links	vendor →	weights →
Benchmarks
MMLU-Pro	—	84.2%	85.4%	—
GPQA-D	—	82.4%	85.8%	87.7%
HumanEval	—	95.1%	95.9%	—
Aider	—	80.1%	83.6%	—
AIME-25	—	88.6%	87.4%	88.9%
LiveCB	—	72.4%	73.8%	—