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 Grok 4xAI |  GPT-5OpenAI |  DeepSeek-V4-FlashDeepSeek | GPT-5.5 OpenAI | |
|---|---|---|---|---|
| Vendor | xAI | OpenAI | DeepSeek | OpenAI |
| Family | Grok | GPT | DeepSeek | GPT |
| Release date | 2025-07-09 | 2025-08-07 | 2026-04-22 | 2026-04-23 |
| Context window | 256,000 tokens | 400,000 tokens | 1,000,000 tokens | 400,000 tokens |
| Parameters | — | — | 284B (13B active) | — |
| Modality | text | text, vision, audio | text | text, vision, audio |
| License | proprietary | proprietary | MIT | proprietary |
| Source | proprietary | proprietary | open weights | proprietary |
| Description | — | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. | 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. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | 82.8% | 85.1% | — | 87.6% |
| GPQA-D | 87.5% | 87.3% | — | 89.4% |
| HumanEval | — | 95.2% | — | 96.8% |
| Aider | 72.5% | 85.4% | — | 89.7% |
| AIME-25 | 86.1% | 91.0% | — | 94.2% |
| LiveCB | 65.3% | 74.5% | — | 78.9% |
| MMMU | — | 74.1% | — | 78.4% |
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Claude 4.8 Opusmax
Qwen3.7-Maxmax
Gemini 3.5maxGemini OmnimaxGPT-5.5✓Qwen3.6-27BmaxDeepSeek-V4-Flash✓DeepSeek-V4-PromaxGemini 3 PromaxClaude 4.7 OpusmaxClaude 4.6 SonnetmaxClaude 4.5 HaikumaxDeepSeek-V3.1maxGPT-5✓Grok 4✓Gemini 2.5 FlashmaxQwen3 235Bmaxo3maxGPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.