| 3 models | Mi Microsoft Phi-4 View → | Cl Anthropic Claude Opus 4.8 View → | Gr xAI Grok 4.3 View → |
|---|---|---|---|
| Maker | Microsoft | Anthropic | xAI |
| Tier | Flagship | Flagship | Flagship |
| Status | Default | Active | Default |
| Context window | 16K ctx | 1M ctx | 1M ctx |
| Released | Dec 1, 2024 | May 28, 2026 | Apr 30, 2026 |
| API string | Phi-4 | claude-opus-4-8 | grok-4.3 |
| Note | 14B-parameter open-weight (MIT) flagship of Microsoft's Phi small-model family; top-of-class STEM reasoning for its size but limited to a 16K context window. Available on Azure AI Foundry, HuggingFace, and Ollama. |
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