Coding
Built for code: C++ and Rust synthesis, more precise generation, and understanding of full-scale codebases.
Second generation · Released August 26, 2026
Sylor S2 Pro.
The second generation of the Sylor family: 744B parameters in a MoE architecture with 40B active per token and native 1M token context.
- Total parameters
- 744B
- Active parameters
- 40B
- Native context
- 1M tokens
GGUF weights · September 2, 2026
The GGUFs are now on Hugging Face.
Sylor S2 Pro quantized weights are published in GGUF format for local execution with llama.cpp, LM Studio and Ollama. Download them today from Hugging Face.
Download from Hugging FaceSpecifications
Technical sheet.
Sylor S2 Pro is the second generation of the Sylor family: 744B total parameters in a Mixture-of-Experts architecture, with 40B active per token.
Total parameters 744B
Active parameters 40B
Architecture Mixture-of-Experts
Native context 1M tokens
Open format GGUF
Launch date August 26, 2026
Training Massive CPT and SFT on a base model
Hardware NVIDIA A100 cluster
The sylor.orzatty.com platform currently exposes a 256K limit.
Key improvements
Where it leaps.
The second generation is not just bigger: it is dramatically better at the two capabilities that matter most today for autonomous software development.
Agentic tasks
Long-horizon planning, tool use and more stable multi-step reasoning. Designed to power autonomous agents end to end.
1M context
A native one-million-token context window: entire codebases, complete documentation and long conversations in a single pass.
MoE efficiency
40B active parameters per token: frontier capability without the cost of running an equivalent dense model.
Run Sylor S2 Pro today.
Download the GGUF from Hugging Face or access it through the platform.