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 Grok 4xAI |  DeepSeek-V4-ProDeepSeek |  Gemini 3.5 |  o3OpenAI | |
|---|---|---|---|---|
| Vendor | xAI | DeepSeek | OpenAI | |
| Family | Grok | DeepSeek | Gemini | o-series |
| Release date | 2025-07-09 | 2026-04-22 | 2026-05-20 | 2025-04-16 |
| Context window | 256,000 tokens | 1,000,000 tokens | 2,000,000 tokens | 200,000 tokens |
| Parameters | — | 1.6T (49B active) | — | — |
| Modality | text | text | text, vision, audio, video | text, vision |
| License | proprietary | MIT | proprietary | proprietary |
| Source | proprietary | open weights | proprietary | proprietary |
| Description | — | DeepSeek's flagship open-weight MoE. 1.6T parameters with 49B activated, 1M-token context, and a hybrid attention scheme (CSA + HCA) that delivers long-context inference at ~27% of V3.2's FLOPs. | Google DeepMind's next-gen Gemini — positioned as "frontier intelligence with action". Built for complex agentic workflows. Announced at Google I/O 2026. | Reasoning-focused model in the o-series. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | 82.8% | 84.2% | 88.9% | — |
| GPQA-D | 87.5% | 82.4% | 91.2% | 87.7% |
| HumanEval | — | 95.1% | — | — |
| Aider | 72.5% | 80.1% | — | — |
| AIME-25 | 86.1% | 88.6% | 96.1% | 88.9% |
| LiveCB | 65.3% | 72.4% | — | — |
| MMMU | — | — | 86.0% | — |
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Claude 4.8 Opusmax
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