Muse Spark 1.3
by Meta · meta/muse-spark-1.3 · #304 cheapest of 422 paid models
Prices updated Sep 19, 2026, 6:22 PM UTC · refreshed hourly
Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. It is designed to keep track of information across extended tasks, work through...
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Pricing
Input
$1.25
per 1M tokens
Output
$4.25
per 1M tokens
Blended (3:1)
$2.00
3 input : 1 output
Cache read
$0.15
per 1M cached tokens
Cache write
—
per 1M tokens
Cache & batch economics
Effective prices for Muse Spark 1.3 with prompt caching.
| Cache hit rate | Effective blended $/1M | Example request* | vs no cache |
|---|---|---|---|
| 0% | $2.00 | $0.1318 | — |
| 50% | $1.59 | $0.0768 | −42% |
| 90% | $1.26 | $0.0328 | −75% |
*Example: 100K sticky context + 2K new input + 1K output. Batch discount is an approximate 50% off list rates (available for OpenAI / Anthropic / Google — not flagged for this creator). Confirm on the vendor’s pricing page.
What a request costs
| Workload | Input tokens | Output tokens | Cost / request | Cost / 1K requests |
|---|---|---|---|---|
| Short chat message | 500 | 300 | $0.0019 | $1.90 |
| Document summary | 8,000 | 1,000 | $0.0143 | $14.25 |
| Codebase question (RAG) | 30,000 | 2,000 | $0.046 | $46.00 |
| Long-context analysis | 150,000 | 5,000 | $0.2087 | $208.75 |
Performance
Intelligence Index
—
AA composite quality
Coding Index
—
Math Index
—
Agentic Index
—
Output speed
—
median
Time to first token
—
median
Time to first answer
—
after reasoning tokens
Design Arena Elo
| Category | Elo |
|---|---|
| Website | 1,364 |
| Web apps | 1,313 |
| Full-stack | 1,318 |
| Mobile apps | 1,226 |
| UI components | 1,381 |
| Data viz | 1,346 |
| SVG | 1,344 |
| 3D | 1,431 |
| Game dev | 1,371 |
| Godot game dev | 1,214 |
| Python→PPTX slides | 1,245 |
| Code categories | 1,373 |
Specs
Context window
1.05M
tokens
Max output
944K
tokens
Input modalities
text, image, video, file, audio
Tokenizer
Other