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Meta | Anthropic | OpenAI | Meta | |
|---|---|---|---|---|
| Vendor | Meta | Anthropic | OpenAI | Meta |
| Family | Llama | Claude | GPT | Llama |
| Release date | 2025-04-05 | 2026-05-28 | 2025-08-07 | 2025-04-05 |
| Context window | 10,000,000 tokens | 1,000,000 tokens | 400,000 tokens | 1,000,000 tokens |
| Parameters | 109B | — | — | 400B |
| Modality | text, vision | text, vision | text, vision, audio | text, vision |
| License | Llama 4 Community License | proprietary | proprietary | Llama 4 Community License |
| Source | open weights | proprietary | proprietary | open weights |
| 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. | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | Mixture-of-experts open-weight model from Meta. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | — | 85.1% | 80.5% |
| GPQA-D | — | — | 87.3% | — |
| HumanEval | — | — | 95.2% | — |
| Aider | — | — | 85.4% | — |
| AIME-25 | — | — | 91.0% | — |
| LiveCB | — | — | 74.5% | — |
| MMMU | — | — | 74.1% | 68.5% |
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