Compare Muse Spark 1.2 from Meta and Claude Opus 5 from Anthropic on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
| Attribute | Muse Spark 1.2 | Claude Opus 5 |
|---|---|---|
| Input price | $1.25/M tokens | $5/M tokens |
| Output price | $4.25/M tokens | $25/M tokens |
| Context window | 1,048,576 tokens | 1,000,000 tokens |
| Intelligence Index | Not available | Not available |
| Coding Index | 72.2 | 77.0 |
| Agentic Index | 43.2 | 55.6 |
| Latency (p50) | 3.26 s | 3.17 s |
| Throughput (p50) | 115.0 tok/s | 63.0 tok/s |
| Provided by | Meta | Anthropic |
| Model page | Muse Spark 1.2 model details, providers and pricing | Claude Opus 5 model details, providers and pricing |
Benchmark data updated
Muse Spark 1.2 is cheaper than Claude Opus 5 on OpenRouter: Muse Spark 1.2 costs $1.25/M tokens input and $4.25/M tokens output, while Claude Opus 5 costs $5/M tokens input and $25/M tokens output.
Muse Spark 1.2 has the longer context window at 1,048,576 tokens, compared with 1,000,000 tokens for Claude Opus 5.
Muse Spark 1.2 is faster on OpenRouter, generating a median 115.0 tokens per second compared with 63.0 tokens per second for Claude Opus 5.
Claude Opus 5 scores higher on coding, with an Artificial Analysis Coding Index of 77.0 compared with 72.2 for Muse Spark 1.2.