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 Grok 4xAI |  DeepSeek-V4-FlashDeepSeek |  GPT-5 ProOpenAI | |
|---|---|---|---|
| Vendor | xAI | DeepSeek | OpenAI |
| Family | Grok | DeepSeek | GPT |
| Release date | 2025-07-09 | 2026-04-22 | 2025-08-07 |
| Context window | 256,000 tokens | 1,000,000 tokens | 400,000 tokens |
| Parameters | — | 284B (13B active) | — |
| Modality | text | text | text, vision, audio |
| License | proprietary | MIT | proprietary |
| Source | proprietary | open weights | proprietary |
| Description | — | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. | Higher-reasoning variant of GPT-5, used for harder scientific and research tasks (e.g., immunology breakthroughs at NIH). Same 400K context as GPT-5; trades latency for depth. |
| Links | |||
| Benchmarks | |||
| MMLU-Pro | 82.8% | — | — |
| GPQA-D | 87.5% | — | — |
| Aider | 72.5% | — | — |
| AIME-25 | 86.1% | — | — |
| LiveCB | 65.3% | — | — |
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GPT-5.6 Sol+
Claude 4.8 Opus+
Qwen3.7-Max+
Gemini 3.5 Flash+Gemini 3.5+Gemini Omni+GPT-5.5+DeepSeek-V4-Flash✓Gemini 3 Pro+DeepSeek-V4-Pro+Qwen3.6-27B+Claude 4.7 Opus+Claude 4.6 Sonnet+Claude 4.5 Haiku+DeepSeek-V3.1+GPT-5 Pro✓GPT-5+Grok 4✓Gemini 2.5 Flash+Qwen3 235B+o3+GPT-4.1+
Llama 4 Scout+Llama 4 Maverick+Gemini 2.5 Pro+DeepSeek-R1+
Mistral Large 2+