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	Gemini 3.5 Google	Grok 4 xAI	Claude 4.8 Opus Anthropic	Llama 4 Maverick Meta
Vendor	Google	xAI	Anthropic	Meta
Family	Gemini	Grok	Claude	Llama
Release date	2026-05-20	2025-07-09	2026-05-28	2025-04-05
Context window	2,000,000 tokens	256,000 tokens	1,000,000 tokens	1,000,000 tokens
Parameters	—	—	—	400B
Modality	text, vision, audio, video	text	text, vision	text, vision
License	proprietary	proprietary	proprietary	Llama 4 Community License
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.	—	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.	Mixture-of-experts open-weight model from Meta.
Links	vendor →	vendor →	vendor →	weights →
Benchmarks
MMLU-Pro	88.9%	82.8%	—	80.5%
GPQA-D	91.2%	87.5%	—	—
Aider	—	72.5%	—	—
AIME-25	96.1%	86.1%	—	—
LiveCB	—	65.3%	—	—
MMMU	86.0%	—	—	68.5%