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 Grok 4xAI |  GPT-5 ProOpenAI |  Gemini 3.5 Flash | o3 OpenAI | |
|---|---|---|---|---|
| Vendor | xAI | OpenAI | OpenAI | |
| Family | Grok | GPT | Gemini | o-series |
| Release date | 2025-07-09 | 2025-08-07 | 2026-05-20 | 2025-04-16 |
| Context window | 256,000 tokens | 400,000 tokens | — | 200,000 tokens |
| Parameters | — | — | — | — |
| Modality | text | text, vision, audio | text, vision, audio | text, vision |
| License | proprietary | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary | proprietary |
| Description | — | 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. | Fast, low-cost tier of the Gemini 3.5 family announced at Google I/O 2026. June 2026 update added native computer-use capability, moving Flash from generation to agentic task execution. | Reasoning-focused model in the o-series. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | 82.8% | — | — | — |
| GPQA-D | 87.5% | — | — | 87.7% |
| Aider | 72.5% | — | — | — |
| AIME-25 | 86.1% | — | — | 88.9% |
| LiveCB | 65.3% | — | — | — |
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GPT-5.6 Solmax
Claude 4.8 Opusmax
Qwen3.7-MaxmaxGemini 3.5 Flash✓Gemini 3.5maxGemini OmnimaxGPT-5.5max
DeepSeek-V4-FlashmaxGemini 3 PromaxDeepSeek-V4-PromaxQwen3.6-27BmaxClaude 4.7 OpusmaxClaude 4.6 SonnetmaxClaude 4.5 HaikumaxDeepSeek-V3.1maxGPT-5 Pro✓GPT-5maxGrok 4✓Gemini 2.5 FlashmaxQwen3 235Bmaxo3✓GPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.