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xAI | OpenAI | OpenAI | DeepSeek | |
|---|---|---|---|---|
| Vendor | xAI | OpenAI | OpenAI | DeepSeek |
| Family | Grok | GPT | GPT | DeepSeek |
| Release date | 2025-07-09 | 2026-06-26 | 2025-08-07 | 2026-04-22 |
| Context window | 256,000 tokens | — | 400,000 tokens | 1,000,000 tokens |
| Parameters | — | — | — | 284B (13B active) |
| Modality | text | text, vision, audio | text, vision, audio | text |
| License | proprietary | proprietary | proprietary | MIT |
| Source | proprietary | proprietary | proprietary | open weights |
| 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. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | 82.8% | — | — | — |
| GPQA-D | 87.5% | — | — | — |
| Aider | 72.5% | — | — | — |
| AIME-25 | 86.1% | — | — | — |
| LiveCB | 65.3% | — | — | — |
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