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 GPT-5.6 SolOpenAI |  Llama 4 ScoutMeta |  Grok 4xAI | GPT-5 Pro OpenAI | |
|---|---|---|---|---|
| Vendor | OpenAI | Meta | xAI | OpenAI |
| Family | GPT | Llama | Grok | GPT |
| Release date | 2026-06-26 | 2025-04-05 | 2025-07-09 | 2025-08-07 |
| Context window | — | 10,000,000 tokens | 256,000 tokens | 400,000 tokens |
| Parameters | — | 109B | — | — |
| Modality | text, vision, audio | text, vision | text | text, vision, audio |
| License | proprietary | Llama 4 Community License | proprietary | proprietary |
| Source | proprietary | open weights | proprietary | proprietary |
| Description | Flagship of OpenAI's GPT-5.6 three-model suite (Sol / Terra / Luna), released as a limited preview. Strong gains in coding, cybersecurity, biology, and long-horizon agentic work. Pricing: $5 / $30 per million input/output tokens. | — | — | 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 Opusmax
Qwen3.7-Maxmax
Gemini 3.5 FlashmaxGemini 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 235Bmaxo3maxGPT-4.1maxLlama 4 Scout✓Llama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.