z-ai
Muse Spark 1.3 vs GLM 5.3 Flash
62.1 overall · $0.237 / 1M
// meta
Muse Spark 1.3
meta/muse-spark-1.3
reasoningtool callingimage inputvideo inputfile inputprompt caching
Muse Spark 1.3 costs $1.25 per 1M input tokens and $4.25 per 1M output tokens with a 1.0M-token context window.
A reasoning, tool-calling model from meta, released Sep 2, 2026. On LiveBench it scores 63.0 overall — #19 of 28 benchmarked models — and ranks highest in data analysis (#8).
- Input / 1M
- $1.25
- Output / 1M
- $4.25
- Context
- 1.0M
- LiveBench overall
- 63.0 · #19
Specs and pricing
| Input price USD per 1M prompt tokens | $1.25 |
|---|---|
| Output price USD per 1M completion tokens, reasoning included | $4.25 |
| Blended price 3:1 input:output — #96 most expensive of 350 listed models | $2.00 |
| Cached input read Blank means not priced separately — not free | $0.150 |
| Cache write | — |
| Context window | 1,048,576 tokens |
| Max output | 943,718 tokens |
| Input modalities | text, image, video, file |
| Tool calling | Yes |
| Extended reasoning | Yes |
| Knowledge cutoff | — |
| Listed | Sep 2, 2026 |
Benchmarks by category
LiveBench scores out of 100, with Muse Spark 1.3's rank among the 28 benchmarked models listed here. Run: muse-spark-1.3.
What Muse Spark 1.3 costs to run
Monthly list cost across five workload shapes, using the published cached-input rate where there is one. A floor, not a quote — batch discounts and cache writes aren't included.
| Workload | Per month |
|---|---|
| Support chatbot 1.2K in / 400 out × 200K requests | $560.80/mo |
| RAG assistant 8K in / 600 out × 100K requests | $815.00/mo |
| Coding agent 40K in / 4K out × 20K requests | $724.00/mo |
| Document extraction 20K in / 1.5K out × 50K requests | $1,514/mo |
| Bulk classification 500 in / 20 out × 5M requests | $3,000/mo |
Compare Muse Spark 1.3 with
The benchmarked models closest to it on overall score.
moonshotai
Muse Spark 1.3 vs Kimi K3
64.6 overall · $4.14 / 1M
openai
Muse Spark 1.3 vs GPT-6 Luna
64.6 overall · $0.200 / 1M
Muse Spark 1.3 vs Gemini 3.8 Flash
59.2 overall · $1.65 / 1M
minimax
Muse Spark 1.3 vs MiniMax M3.1 Flash
66.9 overall · $0.131 / 1M
stepfun
Muse Spark 1.3 vs Step 5 Preview
58.6 overall · $1.43 / 1M
Muse Spark 1.3 FAQ
How much does Muse Spark 1.3 cost?
Muse Spark 1.3 lists at $1.25 per 1M input tokens and $4.25 per 1M output tokens, with cached input reads at $0.150 per 1M. A RAG assistant handling 100K requests a month (8K tokens in, 600 out) comes to about $815.00 at list price.
What is the context window of Muse Spark 1.3?
Muse Spark 1.3 accepts up to 1,048,576 tokens of context and can return up to 943,718 output tokens per response.
Does Muse Spark 1.3 support tool calling?
Yes — Muse Spark 1.3 supports tool (function) calling and exposes extended reasoning. It accepts text, image, video, file input.
How does Muse Spark 1.3 score on benchmarks?
On LiveBench release 2026-10-25 (run: muse-spark-1.3), Muse Spark 1.3 scores 63.0 overall, ranking #19 of 28 benchmarked models.
What is the API model ID for Muse Spark 1.3?
On OpenRouter the model ID is "meta/muse-spark-1.3". It was listed on Sep 2, 2026.
More from meta
How these numbers are produced
- Price and specs — provider list data from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
- Scores and ranks — LiveBench release 2026-10-25. Ranks count only models that have a published run; a blank means “not evaluated”, never “bad”.
- Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.
Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.