Spark 1.3
#100 in Frontier LLMsUnknown · v1.3 · 3× · last seen Sep 04, 2026
24
Momentum
Muse Spark 1.3 is a proprietary, multimodal Frontier language model from Meta (Meta Superintelligence Labs), released on September 2, 2026. It is specialized for agentic workflows and coding tasks, processes text, images, and video as input, and features a context window of approximately 1 million Token. The model is available via Muse Code and the Meta Model API, offered in variants (xhigh, max) as well as a more affordable Contributor tier, and achieves strong results on Long-Context and Coding Benchmarks such as MRCR and DeepSWE.
Momentum trend
08.06.06.09.
Features
| Key Benchmark (%) | 98.5% on MRCR v2 long-context retrieval (256K–512K tokens); 75.4% on DeepSWE 1.1; 88.8% on Terminal-Bench 2.1 |
| Context Window (Tokens) | 1,048,576 tokens (~1M) |
| License | Proprietary (closed weights) |
| Multimodality | Processes text, images and video as input; text output |
| Platform | Muse Code and Meta Model API (dev.meta.ai), also available via OpenRouter |
| Price per 1M Tokens | Standard: $1.25 (input) / $4.25 (output); Contributor tier: $0.10 (input) / $0.20 (output) |
| Release Date | September 2, 2026 |