Claude Haiku 5.5 vs Muse Spark 1.3
Claude Haiku 5.5 and Muse Spark 1.3 are within three points on the Models at Work leaderboard, which we treat as a tie (74 vs 72). Claude Haiku 5.5 is about 3.9× cheaper per blended million tokens ($0.20 vs $0.78, one figure an Artificial Analysis estimate). On Artificial Analysis' independent Intelligence Index, Muse Spark 1.3 leads 48 to 43.
| Claude Haiku 5.5 · Anthropic | Muse Spark 1.3 · Meta | |
|---|---|---|
| Leaderboard rank | #7 | #8 |
| Score (0–100) | 74 | 72 |
| Tier | Fast and cheap | Workhorse |
| Price per 1M tokens | $0.10 in · $0.50 out | $0.78 blended (estimate) |
| Context window | 1M | Not verified |
| Open weights | No | Not verified |
| Artificial Analysis Intelligence Index | 43 | 48 |
| Arena text score | — | 1494 |
| DistressBench (Scale) | — | 84.88 |
| Best for | Classification and extraction, Routing tiers, Latency-sensitive paths | Latency-first products, Customer-facing chat, Meta-ecosystem teams |
Choose Claude Haiku 5.5 if…
- you need classification and extraction
- you need routing tiers
- you need latency-sensitive paths
Ten cents a million and, per the people using it, smarter than the other ten-cent model; mind the 100K cliff.
Caveats: Price jumps five-fold above 100K input tokens, which commenters call an absurdly low cutoff for agent runs.
Choose Muse Spark 1.3 if…
- you need latency-first products
- you need customer-facing chat
- you need meta-ecosystem teams
The fastest thing in the table by a distance, and the one to beat on the stress benchmark nobody else talks about.
What practitioners say
Claude Haiku 5.5: The thread had over a thousand points in a day; the recurring reports are near-perfect structured classification in production and 'noticeably smarter than GPT-6 Luna', against complaints about the 100K pricing tier.
Questions people ask
Which is better, Claude Haiku 5.5 or Muse Spark 1.3?
Claude Haiku 5.5 and Muse Spark 1.3 are within three points on the Models at Work leaderboard, which we treat as a tie (74 vs 72). Claude Haiku 5.5 is about 3.9× cheaper per blended million tokens ($0.20 vs $0.78, one figure an Artificial Analysis estimate). On Artificial Analysis' independent Intelligence Index, Muse Spark 1.3 leads 48 to 43.
When should I choose Claude Haiku 5.5 over Muse Spark 1.3?
Choose Claude Haiku 5.5 for classification and extraction, routing tiers, latency-sensitive paths. Ten cents a million and, per the people using it, smarter than the other ten-cent model; mind the 100K cliff.
When should I choose Muse Spark 1.3 over Claude Haiku 5.5?
Choose Muse Spark 1.3 for latency-first products, customer-facing chat, meta-ecosystem teams. The fastest thing in the table by a distance, and the one to beat on the stress benchmark nobody else talks about.
Which is cheaper, Claude Haiku 5.5 or Muse Spark 1.3?
Claude Haiku 5.5 costs $0.10 per million input tokens and $0.50 per million output tokens on Anthropic's list price (Claude pricing, read Oct 10, 2026). Meta does not publish a simple list price for Muse Spark 1.3; Artificial Analysis estimates a blended $0.78 per million tokens (three input to one output).
Scores come from the Models at Work leaderboard: Score is 0 to 100: 50% independent evals normalised within this table, 20% price-performance, 15% practitioner sentiment from Signals and community threads, 15% operational fit (context, speed, availability, open weights). Models within three points are a tie in practice. Vendor-published figures are labelled as such and never counted as independent. Prices are vendor list prices where published; blended figures assume three input tokens per output token.