Baichuan 3 / 4 class is a LLM from Baichuan AI (China).
One-line fit: best used for CN business text.
Key specifications
| Provider | Baichuan AI |
|---|---|
| Model | Baichuan 3 / 4 class |
| Type | LLM |
| Context window | Large |
| Pricing (indicative) | Open/API |
| Company category | Frontier Lab |
| Region | China |
| Official site | https://www.baichuan-ai.com |
Benchmarks and public standing
Strong CN evals at launch windows
Treat scores as directional. SWE-bench, Terminal-Bench, LMSYS Arena, Artificial Analysis, and vendor cards use different harnesses and are not always comparable 1:1. Re-check the latest official model card before decisions.
What this model is good at
CN business text
This aligns with Baichuan AI’s broader strengths:
- CN open models
- Enterprise China
- Search-informed training heritage
Limitations and watch-outs
International distribution
- Rate limits, regional availability, and data retention policies vary by plan.
- Agent harness quality (Cursor, Claude Code, Codex, custom tools) can change outcomes more than raw model Elo.
- Open-weight availability (if any) is separate from hosted API quality and safety filters.
Ideal users
- Product engineers shipping features that match: CN business text
- Teams standardizing on the Baichuan AI ecosystem
- Agent builders who need a LLM
When to pick something else
- Cheaper volume: compare lower tiers from the same lab or open Chinese/EU alternatives.
- Maximum hard SWE thoughtfulness: compare Claude Fable-class and other coding flagships.
- Giant multimodal corpora / Workspace: compare Gemini-class models.
- Self-host / open weights: Llama, Qwen, DeepSeek, GLM, Mistral open lines.
Parent company
Baichuan AI – Sogou founder-led lab; Baichuan open and commercial models for CN enterprise.
Related models from Baichuan AI
Data is curated for AIForumSphere model directory mid-2026 directional figures.
