Meta: Muse Spark 1.1
Muse Spark 1.1 is a reasoning model from Meta released on Apr 8, 2026. It reads text, images, files and video and writes text, with a 1.05M token context window and up to 131K tokens per reply.
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It costs $1.25 per million input tokens and $4.25 per million output tokens. Cached input bills at $0.15, 88% less than fresh input.
It supports tool calling, structured JSON output and prompt caching.
14 providers serve it, including Vercel AI Gateway, Abacus and Cloudflare AI Gateway.
- Modalities
- In / out price
- $1.25 / $4.25 per 1M
- Context
- 1.05M
- Max output
- 131K
- Released
- Apr 8, 2026
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
Muse Spark 1.1 pricing
USD, as listed on Oct 15, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $1.25 / 1M tokens | |
|---|---|---|
| Output | $4.25 / 1M tokens | |
| Cached input (read) | $0.15 / 1M tokens | 88% off input |
Muse Spark 1.1 providers
14 providers serve it, including Vercel AI Gateway, Abacus and Cloudflare AI Gateway. Each host sets its own price and limits, so the cheapest one is not always the one with the longest context.
| Provider | Input /M | Output /M | Cache read /M | Context | Max output |
|---|---|---|---|---|---|
| Meta First party | $1.25 | $4.25 | $0.15 | 1.05M | 131K |
| Vercel AI Gateway | $1.25 | $4.25 | $0.15 | 1.05M | 1.05M |
| Abacus | $1.25 | $4.25 | $0.15 | 1M | 32K |
| Cloudflare AI Gateway | $1.25 | $4.25 | $0.16 | 1.05M | 131K |
| DevPass (LLM Gateway) | $1.25 | $4.25 | $0.15 | 1.05M | 131K |
| EmpirioLabs AI | $1.25 | $4.25 | $1 | 1.05M | 131K |
| Kilo Gateway | $1.25 | $4.25 | $0.15 | 1.05M | 944K |
| LLM Gateway | $1.25 | $4.25 | $0.15 | 1.05M | 131K |
| Merge Gateway | $1.25 | $4.25 | $0.15 | 1.05M | 262K |
| NanoGPT | $1.25 | $4.25 | $0.15 | 1M | 66K |
| OrcaRouter | $1.25 | $4.25 | $0.15 | 1.05M | 131K |
| Pioneer | $1.25 | $4.25 | $0.15 | 1.05M | 131K |
Showing 12 of 14 providers: the lab first, then the major clouds, then the cheapest resellers.
What Muse Spark 1.1 costs per month
Pick a workload close to yours or type your own volumes.
Supported request parameters
What you can set when you call Muse Spark 1.1 through an OpenAI compatible API.
- Tools
tools - Structured outputs
structured_outputs - Reasoning
reasoning - Temperature
temperature
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Muse Image 1.0
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- 131K context
Reads text and images. Tool calling, structured output, reasoning. Served by 12 providers.
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Muse Spark 1.1 questions
How much does the Muse Spark 1.1 API cost?
$1.25 per million input tokens and $4.25 per million output tokens, with cached input at $0.15. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of Muse Spark 1.1?
1,048,576 tokens of input, and it can write up to 131,072 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Which providers serve Muse Spark 1.1?
14 providers serve it, including Vercel AI Gateway, Abacus and Cloudflare AI Gateway. Prices differ by host, so the Providers table on this page lists each one with its input and output price.
Does Muse Spark 1.1 support tool calling?
Yes. It accepts tool definitions and can return JSON that matches a schema, which is what an agent needs to call your APIs.
Is Muse Spark 1.1 open source?
No. Meta serves it through an API only, so you cannot download the weights or host it yourself.
When was Muse Spark 1.1 released?
Apr 8, 2026.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.
Building on Muse Spark 1.1?
I test your real tasks on it and the two closest alternatives, then ship the agent on whichever wins on cost and accuracy.
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