Muse Spark 1.3 pricing and routing profile
Muse Spark 1.3 from Meta lists at $1.25 per million input tokens and $4.25 per million output tokens, with a 1,048,576-token context window. Prices from OpenRouter's catalogue on 2026-09-28.
Tool callingStructured outputReasoning control
Cost per 1,000 requests
| Request shape | List cost |
|---|---|
| Classification or routing (600 tokens in, 10 out) | $0.792 |
| Chat reply (2,000 in, 400 out) | $4.20 |
| Retrieval-augmented answer (8,000 in, 500 out) | $12.13 |
Before prompt caching. Try your own shape in the cost calculator.
Can Gimbix route to it first?
Not as a first-answer model through OpenRouter: no host returns token log probabilities for Muse Spark 1.3. It can still be the model Gimbix falls back to when a cheaper model is unsure.
Cheaper models that can answer first
Models priced below Muse Spark 1.3 that expose a confidence signal. Whether they answer your traffic as well is what a Gimbix pilot measures.
| Model | Input / output per 1M | Cheaper on a chat reply |
|---|---|---|
| Qwen3 Max Thinking | $0.78 / $3.90 | 26% |
| Qwen3 Max | $0.78 / $3.90 | 26% |
| Grok Build 0.1 | $1.00 / $2.00 | 33% |
| DeepSeek V4 Pro 0423 | $0.955 / $1.91 | 36% |
| Kimi K2.6 | $0.65 / $3.41 | 37% |
| Kimi K2.7 Code | $0.656 / $3.30 | 37% |
Questions
How much does Muse Spark 1.3 cost?
Muse Spark 1.3 lists at $1.25 per million input tokens and $4.25 per million output tokens on OpenRouter as of 2026-09-28. A typical chat reply of 2,000 input and 400 output tokens costs about $4.20 per 1,000 requests.
What is the context window of Muse Spark 1.3?
1,048,576 tokens.
Can a cheaper model replace Muse Spark 1.3?
Sometimes. Gimbix proves it on your own traffic before routing: the cheaper model must match Muse Spark 1.3 on one half of your requests and make at most three answers worse on the other.