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 Claude 4.7 OpusAnthropic |  Grok 4xAI |  Gemini 3 Pro |  GPT-5.5OpenAI | |
|---|---|---|---|---|
| Vendor | Anthropic | xAI | OpenAI | |
| Family | Claude | Grok | Gemini | GPT |
| Release date | 2026-04-16 | 2025-07-09 | 2026-04-22 | 2026-04-23 |
| Context window | 1,000,000 tokens | 256,000 tokens | 2,000,000 tokens | 400,000 tokens |
| Parameters | — | — | — | — |
| Modality | text, vision | text | text, vision, audio, video | text, vision, audio |
| License | proprietary | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary | proprietary |
| Description | Anthropic's most capable model, optimized for complex reasoning and coding. Improved software engineering, long-running coding tasks, and higher-resolution vision over Claude 4.6. | — | Google DeepMind's flagship multimodal model. Best-in-class for multimodal understanding and agentic / vibe coding workflows. A "Deep Think" reasoning mode is available to AI Ultra subscribers. | 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. |
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