Tether AI Research (QVAC) · On-Device Agent LLM

BotPsy-0.8B

BotPsy is a 0.8B-parameter language model for function calling and agentic workflows, built on Qwen3.5-0.8B for on-device use. Tether reports BFCL v4 rising from 23.4 to 44.0 and τ-bench from 23.2 to 51.5 over its base model, and says it leads all models up to 1.2B parameters tested on six tool-use and agentic benchmarks. It is to be released under Apache 2.0 in bf16, Q8 and Q4 precisions, as safetensors and GGUF files for llama.cpp and the QVAC SDK.