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	Gemini 3.5 Google	GPT-5 OpenAI	Claude 4.8 Opus Anthropic	DeepSeek-V4-Pro DeepSeek
Vendor	Google	OpenAI	Anthropic	DeepSeek
Family	Gemini	GPT	Claude	DeepSeek
Release date	2026-05-20	2025-08-07	2026-05-28	2026-04-22
Context window	2,000,000 tokens	400,000 tokens	1,000,000 tokens	1,000,000 tokens
Parameters	—	—	—	1.6T (49B active)
Modality	text, vision, audio, video	text, vision, audio	text, vision	text
License	proprietary	proprietary	proprietary	MIT
Source	proprietary	proprietary	proprietary	open weights
Description	Google DeepMind's next-gen Gemini — positioned as "frontier intelligence with action". Built for complex agentic workflows. Announced at Google I/O 2026.	OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026.	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.
Links	vendor →	vendor →	vendor →	weights →
Benchmarks
MMLU-Pro	88.9%	85.1%	—	84.2%
GPQA-D	91.2%	87.3%	—	82.4%
HumanEval	—	95.2%	—	95.1%
Aider	—	85.4%	—	80.1%
AIME-25	96.1%	91.0%	—	88.6%
LiveCB	—	74.5%	—	72.4%
MMMU	86.0%	74.1%	—	—