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Muse Spark 1.3 API Pricing — $1.25/M input, $4.25/M output

A model built for long-horizon coding and multi-step agentic work. Improved tool, browser, and computer use across harnesses, with native tool calling and MCP support.

Full specs, context window and API limits →

How much does Muse Spark 1.3 cost per million tokens?

Muse Spark 1.3, from Meta, charges $1.25 per million input tokens and $4.25 per million output tokens — $2.00 per million blended at a 3:1 input:output ratio. That makes it pricier than Claude Haiku 4.5 on a blended-token basis.

Verified 2026-08-14 source
Input
$1.25/M
Output
$4.25/M
Blended
$2.00/M
Provider
Verified 2026-08-14source

How much does Muse Spark 1.3 cost per 1,000 requests?

Computed from generated token pricing. Each row assumes the listed input and output tokens per request; this model has no measured verbosity factor, so the unadjusted output estimate is shown.

Request shapeInput tokensOutput tokensCost / 1,000 requests
Short10050$0.3375
Medium1,000500$3.3750
Long4,0002,000$13.5000

Formula: ((input price × input tokens) + (output price × output tokens × verbosity factor)) ÷ 1,000,000 × 1,000. Assumptions: short 100/50, medium 1,000/500, long 4,000/2,000 input/output tokens per request. Unadjusted — no measured verbosity factor is available.

How fast is Muse Spark 1.3?

Not yet measured — see the speed benchmark leaderboard for models we do track.

How much does Muse Spark 1.3 cost at scale?

Tokens / monthEst. cost (blended 3:1)
100,000$0.20
1,000,000$2.00
10,000,000$20.00
100,000,000$200.00

How does Muse Spark 1.3 compare with other models?

Muse Spark 1.3 Contributor$0.13/MClaude Haiku 4.5$2.00/MDeepSeek V4 Pro$1.98/Mo3-Mini$1.93/M
See all Meta models →

What is Muse Spark 1.3 best for?

#6 for Math & Reasoning#6 for Agents & Tool Use#6 for Long Documents & RAG
Looking for a cheaper option?
Muse Spark 1.3 Contributor is 93.8% cheaper — a drop-in migration. See all 8 alternatives to Muse Spark 1.3

Which Muse Spark 1.3 head-to-head comparisons are available?

Muse Spark 1.3 vs Claude Opus 4.8

What are common questions about Muse Spark 1.3?

Is Muse Spark 1.3 cheaper than Claude Haiku 4.5?

Muse Spark 1.3 costs $2.00/M blended tokens, Claude Haiku 4.5 costs $2.00/M — Claude Haiku 4.5 is cheaper.

How much does 1 million tokens cost with Muse Spark 1.3?

At a 3:1 input:output ratio, 1 million blended tokens costs approximately $2.00. Pure input costs $1.25/M; pure output costs $4.25/M.

What does Muse Spark 1.3 cost at high volume?

At 100 million blended tokens a month, Muse Spark 1.3 costs approximately $200.00. See the cost-at-scale table below for other volumes.

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