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 Llama 4 MaverickMeta |  GPT-5.5OpenAI | o3 OpenAI |  DeepSeek-V4-FlashDeepSeek | |
|---|---|---|---|---|
| Vendor | Meta | OpenAI | OpenAI | DeepSeek |
| Family | Llama | GPT | o-series | DeepSeek |
| Release date | 2025-04-05 | 2026-04-23 | 2025-04-16 | 2026-04-22 |
| Context window | 1,000,000 tokens | 400,000 tokens | 200,000 tokens | 1,000,000 tokens |
| Parameters | 400B | — | — | 284B (13B active) |
| Modality | text, vision | text, vision, audio | text, vision | text |
| License | Llama 4 Community License | proprietary | proprietary | MIT |
| Source | open weights | proprietary | proprietary | open weights |
| Description | Mixture-of-experts open-weight model from Meta. | OpenAI's smartest and most intuitive model — successor to GPT-5, with major coding, research, and document workflow gains. GPT-5.5 Pro variant also available for heavier reasoning. | Reasoning-focused model in the o-series. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | 80.5% | 87.6% | — | — |
| GPQA-D | — | 89.4% | 87.7% | — |
| HumanEval | — | 96.8% | — | — |
| Aider | — | 89.7% | — | — |
| AIME-25 | — | 94.2% | 88.9% | — |
| LiveCB | — | 78.9% | — | — |
| MMMU | 68.5% | 78.4% | — | — |
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