Meta: Muse Spark 1.2 Contributor (Data Used for Training)
Muse Spark 1.2 Contributor (Data Used for Training) is a reasoning model from Meta released on Aug 5, 2026. It reads text, images, files, audio and video and writes text, with a 1M token context window and up to 66K tokens per reply.
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It costs $0.10 per million input tokens and $0.20 per million output tokens. Cached input bills at $0.002, 98% less than fresh input.
It supports tool calling, structured JSON output and prompt caching.
4 providers serve it, including Vercel AI Gateway, DevPass (LLM Gateway) and Kilo Gateway.
- Modalities
- In / out price
- $0.10 / $0.20 per 1M
- Context
- 1M
- Max output
- 66K
- Released
- Aug 5, 2026
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
Muse Spark 1.2 Contributor (Data Used for Training) 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 | $0.10 / 1M tokens | |
|---|---|---|
| Output | $0.20 / 1M tokens | |
| Cached input (read) | $0.002 / 1M tokens | 98% off input |
Muse Spark 1.2 Contributor (Data Used for Training) providers
4 providers serve it, including Vercel AI Gateway, DevPass (LLM Gateway) and Kilo 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 |
|---|---|---|---|---|---|
| Vercel AI Gateway | $0.10 | $0.20 | $0.002 | 1.05M | 1.05M |
| DevPass (LLM Gateway) | $0.10 | $0.20 | $0.002 | 1.05M | 1.05M |
| Kilo Gateway | $0.10 | $0.20 | $0.002 | 1.05M | 944K |
| NanoGPT | $0.10 | $0.20 | $0.002 | 1M | 66K |
What Muse Spark 1.2 Contributor (Data Used for Training) 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 1.2 Contributor (Data Used for Training) through an OpenAI compatible API.
- Tools
tools - Structured outputs
structured_outputs - Reasoning
reasoning
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Muse Spark 1.2 Contributor (Data Used for Training) questions
How much does the Muse Spark 1.2 Contributor (Data Used for Training) API cost?
$0.10 per million input tokens and $0.20 per million output tokens, with cached input at $0.002. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of Muse Spark 1.2 Contributor (Data Used for Training)?
1,000,000 tokens of input, and it can write up to 65,536 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Which providers serve Muse Spark 1.2 Contributor (Data Used for Training)?
4 providers serve it, including Vercel AI Gateway, DevPass (LLM Gateway) and Kilo Gateway. Prices differ by host, so the Providers table on this page lists each one with its input and output price.
Does Muse Spark 1.2 Contributor (Data Used for Training) 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 1.2 Contributor (Data Used for Training) open source?
No. Meta serves it through an API only, so you cannot download the weights or host it yourself.
When was Muse Spark 1.2 Contributor (Data Used for Training) released?
Aug 5, 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 1.2 Contributor (Data Used for Training)?
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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