Head to head
Anthropic: Claude Fable 5.1 vs Meta: Muse Spark 1.2
Live prices, context windows, capabilities, and measured quality — updated continuously.
Side by side
| Metric | Anthropic: Claude Fable 5.1 Anthropic | Meta: Muse Spark 1.2 Meta |
|---|---|---|
| Input $/M tokens | $10.00 | $1.25 |
| Output $/M tokens | $50.00 | $4.25 |
| Context window | 1.0M | 1.0M |
| Max output | 128K | 944K |
| WM Score | 92 | 85 |
| Benchmark quality | 97.6 | 85.3 |
| Hosts serving it | 4 | 1 |
| Throughput (tok/s) | 60 | 141 |
| Latency (ms) | 4421 | 3276 |
| Vision | ||
| Tools | ||
| Reasoning | ||
| JSON mode |
Which should you pick?
Meta: Muse Spark 1.2 costs less per million input tokens — about 8.0× cheaper than Anthropic: Claude Fable 5.1. Anthropic: Claude Fable 5.1 scores higher on measured quality. Meta: Muse Spark 1.2 takes a larger context window, which matters for long documents or big codebases. Prices here are live list prices; the same model can cost less on a different host, so check the model page for the cheapest offering.