Compare models
Pick up to 4models. Specs render side-by-side. Share the URL — it's stateless.
Comparing agents instead? Switch to agent compare →
 GPT-5 ProOpenAI |  Gemini 2.5 Pro | GPT-5.6 Sol OpenAI | |
|---|---|---|---|
| Vendor | OpenAI | OpenAI | |
| Family | GPT | Gemini | GPT |
| Release date | 2025-08-07 | 2025-03-25 | 2026-06-26 |
| Context window | 400,000 tokens | 2,000,000 tokens | — |
| Parameters | — | — | — |
| Modality | text, vision, audio | text, vision, audio, video | text, vision, audio |
| License | proprietary | proprietary | proprietary |
| Source | 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. | Predecessor to Gemini 3 Pro. | 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. |
| Links | |||
| Benchmarks | |||
| MMLU-Pro | — | 84.1% | — |
| GPQA-D | — | 84.0% | — |
| MMMU | — | 72.4% | — |
Add a model
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+