Detailed comparison of capabilities, features, and performance.
| Feature | Muse Spark 1.3 | Claude 4.5 Sonnet (thinking) |
|---|---|---|
| AI Lab | Meta | Anthropic |
| Context Size | 1,048,576 tokens | 1,000,000 tokens |
| Max Output Size | 262,144 tokens | 64,000 tokens |
| Frontier Model | Yes | Yes |
| Vision Support | Yes | Yes |
| Description | Meta's agentic and coding model, served on Meta Model API. Built for multi-step tool loops, software engineering, and long-context reasoning, with parallel tool calls and reasoning that carries across turns. 1M context window. | The latest Claude 4.5 Sonnet model from Anthropic with maximum reasoning enabled, 200k reasoning tokens in 1M context. |
View detailed specifications and capabilities
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View model details →Access both Muse Spark 1.3 and Claude 4.5 Sonnet (thinking) in a single workspace without managing multiple API keys.
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