Compare · updated 2026-11-01
Claude Haiku vs Muse Spark
Claude Haiku is better at writing; Muse Spark is better at quick answers, coding, reasoning, maths, structured data, long documents, translation. Claude Haiku is the cheaper of the two on output.
Measured quality by task
| Task | Claude Haiku | Muse Spark | Better |
|---|---|---|---|
| Quick answers | 85/100 | 89/100 | Muse Spark |
| Writing | 89/100 | 86/100 | Claude Haiku |
| Coding | 82/100 | 84/100 | Muse Spark |
| Reasoning | 74/100 | 83/100 | Muse Spark |
| Maths | 79/100 | 80/100 | Muse Spark |
| Structured data | 86/100 | 88/100 | Muse Spark |
| Long documents | 87/100 | 90/100 | Muse Spark |
| Translation | 83/100 | 89/100 | Muse Spark |
Quality is Nivana’s measured score for each kind of task, from weekly pairwise evals judged by models from several labs. Prices are live AI Gateway list prices per million tokens. Updated 2026-11-01. How this is measured.
Price and context
| Claude Haiku | Muse Spark | |
|---|---|---|
| Lab | Anthropic | Meta |
| Input per 1M tokens | $0.1 | $1.25 |
| Output per 1M tokens | $0.5 | $4.25 |
| Typical chat answer | $0.00050 | $0.00485 |
| Context window | 1M | 1.05M |
| Router picks it for | Fallback only | Fallback only |
Which should you use?
Use the one that wins the kind of work you do most, unless the price gap outweighs the quality gap for easy requests. Or don’t choose: Nivana scores both, and the rest of the pool, on every request and sends it to whichever is best for that request.
Questions
Is Claude Haiku better than Muse Spark?
On Nivana’s weekly evals Claude Haiku scores higher on 1 of 8 task types (writing) and Muse Spark on 7 (quick answers, coding, reasoning, maths, structured data, long documents, translation). Neither is better at everything.
Which is better for coding, Claude Haiku or Muse Spark?
Muse Spark: 84/100 against 82/100 for Claude Haiku on Nivana’s coding evals.
Which is better for writing, Claude Haiku or Muse Spark?
Claude Haiku: 89/100 against 86/100 for Muse Spark on Nivana’s writing evals.
Which is cheaper, Claude Haiku or Muse Spark?
Claude Haiku: $0.5 per million output tokens against $4.25 for Muse Spark, about 8.5× less. A typical chat answer costs about $0.0005 on Claude Haiku and $0.0049 on Muse Spark.
Or let the router pick, per request
Nivana sends every message to the model that scores best for it, sets how hard it thinks, and tells you which one answered. 2,000 free credits to start, no card.