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 Claude 4.5 HaikuAnthropic |  Grok 4xAI |  o3OpenAI | GPT-5 OpenAI | |
|---|---|---|---|---|
| Vendor | Anthropic | xAI | OpenAI | OpenAI |
| Family | Claude | Grok | o-series | GPT |
| Release date | 2025-10-01 | 2025-07-09 | 2025-04-16 | 2025-08-07 |
| Context window | 200,000 tokens | 256,000 tokens | 200,000 tokens | 400,000 tokens |
| Parameters | — | — | — | — |
| Modality | text, vision | text | text, vision | text, vision, audio |
| License | proprietary | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary | proprietary |
| Description | Fast, cost-effective Claude model. | — | Reasoning-focused model in the o-series. | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. |
| Links |
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Gemini 2.5 FlashmaxClaude 4.6 SonnetmaxGPT-5.5max
DeepSeek-V4-Flashmax
Qwen3.6-27BmaxGemini 3 PromaxDeepSeek-V4-PromaxClaude 4.7 OpusmaxClaude 4.5 Haiku✓DeepSeek-V3.1maxGPT-5✓Grok 4✓Qwen3 235Bmaxo3✓GPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.