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SelectedAnthropic logoClaude 4.8 Opus×Meta logoLlama 4 Maverick×OpenAI logoGPT-4.1×Clear all
 
Anthropic logoClaude 4.8 Opus

Anthropic

Meta logoLlama 4 Maverick

Meta

OpenAI logoGPT-4.1

OpenAI

VendorAnthropicMetaOpenAI
FamilyClaudeLlamaGPT
Release date2026-05-282025-04-052025-04-14
Context window1,000,000 tokens1,000,000 tokens1,000,000 tokens
Parameters400B
Modalitytext, visiontext, visiontext, vision
LicenseproprietaryLlama 4 Community Licenseproprietary
Sourceproprietaryopen weightsproprietary
DescriptionAnthropic'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.
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Benchmarks
MMLU-Pro80.5%
MMMU68.5%

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