Muse Spark 1.3
#92 in Frontier LLMsUnknown · v1.3 · since 2. September 2026 · 4× · last seen Oct 03, 2026
25
Momentum
Muse Spark 1.3 is a proprietary, multimodal reasoning model from Meta Superintelligence Labs, released on September 2, 2026, succeeding the Llama line as Meta's primary model family. It targets agentic workflows, tool use, and coding tasks, accepts text, image, video, audio, and PDF input, and offers a roughly 1-million-token context window. The model is available exclusively via API (Muse Code, Meta Model API); weights are closed.
Momentum trend
05.07.03.10.
Features
| Key Benchmark (%) | Artificial Analysis Intelligence Index: 48 (max variant) |
| Context Window (Tokens) | 1,048,576 tokens (~1M) |
| License | Proprietary, closed weights (API only) |
| Multimodality | Input: text, image, video, audio, PDF; Output: text |
| Platform | Muse Code and Meta Model API (dev.meta.ai) |
| Price per 1M Tokens | $1.25 input / $4.25 output (standard tier) |
| Release Date | September 2, 2026 |