Yi-Coder
01.AI's compact 1.5B/9B coder with 128K context, Apache 2.0.
About
Yi-Coder (September 2024) is 01.AI's pair of open code models — 1.5B and 9B, each in base and chat versions — trained on 2.4T tokens with 128K context across 52 programming languages. The 9B was the only sub-10B model at release to clear 20% on LiveCodeBench (team-reported 23.4%), beating the much larger DeepSeek-Coder-33B there. Apache 2.0. Small, fast, and genuinely useful for local completion and editing, though long-horizon agentic work favors bigger models.
Specs
Context window
Pricing
Free quota
API access
Weights
Released
Benchmarks
Team-reported: Yi-Coder-9B-Chat — LiveCodeBench 23.4%, outperforming DeepSeek-Coder-33B-Instruct on that benchmark.
Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.
Use cases
Trust score — 7/10
Scored 7/10 (verified tier, metrics-v1). Evidence: HF model card + HF blog + DeepNewz read this session: Sep 5 2024, 1.5B/9B base+chat, Apache 2.0, 128K context, 52 languages, 2.4T tokens (9B).; Team-reported: 9B-Chat LiveCodeBench 23.4%, beating DeepSeek-Coder-33B there..