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 GPT-5.6 SolOpenAI | o3 OpenAI |  Qwen3.6-27BAlibaba |  Grok 4xAI | |
|---|---|---|---|---|
| Vendor | OpenAI | OpenAI | Alibaba | xAI |
| Family | GPT | o-series | Qwen | Grok |
| Release date | 2026-06-26 | 2025-04-16 | 2026-04-22 | 2025-07-09 |
| Context window | — | 200,000 tokens | 262,144 tokens | 256,000 tokens |
| Parameters | — | — | 27B (dense) | — |
| Modality | text, vision, audio | text, vision | text, vision, video | text |
| License | proprietary | proprietary | Apache-2.0 | proprietary |
| Source | proprietary | proprietary | open weights | 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. | Reasoning-focused model in the o-series. | Alibaba's first dense open-weight in the 3.6 family. Strong agentic-coding scores (77.2 SWE-bench Verified, matching Claude 4.5 Opus on Terminal-Bench 2.0). Supports 201 languages and multimodal text/image/video input. | — |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | — | 78.9% | 82.8% |
| GPQA-D | — | 87.7% | — | 87.5% |
| HumanEval | — | — | 91.5% | — |
| Aider | — | — | 70.2% | 72.5% |
| AIME-25 | — | 88.9% | — | 86.1% |
| LiveCB | — | — | — | 65.3% |
| MMMU | — | — | 70.3% | — |
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GPT-5.6 Sol✓
Claude 4.8 OpusmaxQwen3.7-Maxmax
Gemini 3.5 FlashmaxGemini 3.5maxGemini OmnimaxGPT-5.5max
DeepSeek-V4-FlashmaxGemini 3 PromaxDeepSeek-V4-PromaxQwen3.6-27B✓Claude 4.7 OpusmaxClaude 4.6 SonnetmaxClaude 4.5 HaikumaxDeepSeek-V3.1maxGPT-5 PromaxGPT-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.