Muse Spark 1.3
Long-horizon coding agents and multi-step tool-use workflows on Meta’s first-party API.
Muse Spark 1.3 supersedes Llama 4 Maverick.
What are Muse Spark 1.3's specs and price?
Muse Spark 1.3, built by Meta, ships a 1.0M-token context window and a 128K-token max output, released 2026-09. It supports text input with a dedicated reasoning mode and costs $2.00 per million blended tokens, the 20th-cheapest of 39 models we track.
muse-spark-1.3What are Muse Spark 1.3's specs?
| Context window | 1.0M tokens |
| Max output | 128K tokens |
| Modalities | text |
| Extended thinking | Yes |
| Released | 2026-09 |
| Knowledge cutoff | Not published |
| Provider | Meta |
| Tools | tool calling, MCP |
Verified 2026-08-14 — source.
Where does Muse Spark 1.3 rank?
What are Muse Spark 1.3's strengths?
- Built for long-horizon coding and multi-step agentic work
- Improved tool, browser, and computer use across harnesses
- Native tool calling and MCP support
What else should you know about Muse Spark 1.3?
What are common questions about Muse Spark 1.3?
What is Muse Spark 1.3's context window?
Muse Spark 1.3 has a 1.0M-token context window and a 128K-token max output — the 3rd-largest context of the 39 current models we track. Source: https://ai.meta.com/pricing, verified 2026-08-14.
Does Muse Spark 1.3 support vision or audio input?
No — Muse Spark 1.3 is text-only as of 2026-08-14.
Does Muse Spark 1.3 have a reasoning or extended-thinking mode?
Yes — Muse Spark 1.3 exposes a dedicated reasoning mode for multi-step problems.
When was Muse Spark 1.3 released, and what is its knowledge cutoff?
Muse Spark 1.3 was released 2026-09.
How much does Muse Spark 1.3 cost, and who provides it?
Muse Spark 1.3 is served by Meta at $2.00/M blended tokens (3:1 input:output) — the 20th-cheapest of 39 current models. Full pricing breakdown: /llm-api-pricing/muse-spark-1-3.