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 o3OpenAI |  Llama 4 MaverickMeta | GPT-5 OpenAI |  Grok 4xAI | |
|---|---|---|---|---|
| Vendor | OpenAI | Meta | OpenAI | xAI |
| Family | o-series | Llama | GPT | Grok |
| Release date | 2025-04-16 | 2025-04-05 | 2025-08-07 | 2025-07-09 |
| Context window | 200,000 tokens | 1,000,000 tokens | 400,000 tokens | 256,000 tokens |
| Parameters | — | 400B | — | — |
| Modality | text, vision | text, vision | text, vision, audio | text |
| License | proprietary | Llama 4 Community License | proprietary | proprietary |
| Source | proprietary | open weights | proprietary | proprietary |
| Description | Reasoning-focused model in the o-series. | Mixture-of-experts open-weight model from Meta. | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | — |
| Links |
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Gemini 2.5 Flashmax
Claude 4.6 SonnetmaxGPT-5.5max
DeepSeek-V4-Flashmax
Qwen3.6-27BmaxGemini 3 PromaxDeepSeek-V4-PromaxClaude 4.7 OpusmaxClaude 4.5 HaikumaxDeepSeek-V3.1maxGPT-5✓Grok 4✓Qwen3 235Bmaxo3✓GPT-4.1maxLlama 4 ScoutmaxLlama 4 Maverick✓Gemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.