Empero AI releases Qwythos-9B reasoning model with 1M context window

The empero-ai/Qwythos-9B-Claude-Mythos-5-1M model, a 9B parameter reasoning model, has been released and is available on Hugging Face. This model is built upon Qwen3.5-9B and fine-tuned with Claude Mythos and Fable traces, featuring a 1 million token context window enabled by YaRN rope-scaling. Instructions and integration guides are provided for various libraries and inference providers, including llama-cpp-python, llama.cpp, vLLM, Ollama, and Unsloth Studio. AI

IMPACT This model's large context window and reasoning capabilities could enable more complex applications and analysis.

RANK_REASON Model release from a lab (Empero AI) with a named model and significant capability (1M context window). [lever_c_demoted from frontier_release: ic=2 ai=1.0]

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• empero-ai/Qwythos-9B-Claude-Mythos-5-1M-GGUF
• Google Colab
• Jan
• Kaggle
• Llama
• llama-cli
• llama.cpp
• llama-cpp-python
• llama-server
• LM Studio
• Ollama
• Qwythos-9B-Claude-Mythos-5-1M-BF16.gguf
• Unsloth Studio
• vLLM
• Claude Fable
• Claude Mythos
• empero-ai/Qwythos-9B-Claude-Mythos-5-1M
• Hugging Face
• Qwen3.5-9B

• model release
• product

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