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Baichuan AI

What Baichuan AI does

Baichuan AI (Beijing Baichuan Intelligent Technology Co., Ltd.) is a private Beijing-based AI company founded in 2023 by Wang Xiaochuan. The company develops general-purpose large language models and downstream AI applications, with an emphasis on deploying models for real-world enterprise and health-related scenarios. Its product strategy combines (1) open or commercially licensed foundation models (for developers and fine-tuning/serving ecosystems) and (2) an application/platform layer for enterprise usage, including an API-style model service and an agent workflow approach. On its site, Baichuan presents a model lineup that includes general-purpose models (for knowledge search, long-context, and multimodal use) and medical-focused models (positioned for clinical-grade assistance), alongside a set of user-facing products such as Baixiaoying (an assistant) and “百小医” (an AI patient companion).

News

Company record

Jun 09, 2026 · Reporting · arXivBaichuan-M4: A Clinical-Grade Medical Agent System for Continuous Care (preprint)

Baichuan published an arXiv preprint describing Baichuan-M4 as a clinical-grade medical agent system and detailing components such as a unified runtime, reasoning model, and a clinical tool layer.

May 15, 2026 · Official · Baichuan policy siteBaichuan “百小医” app user agreement published

Baichuan’s site publishes a user agreement for the “百小医” app and intelligent conversation service, with a stated发布时间 and effective date.

Feb 10, 2026 · Reporting · arXivBaichuan-M3: Modeling Clinical Inquiry for Reliable Medical Decision-Making (preprint)

Baichuan published an arXiv preprint for Baichuan-M3, describing training and design aimed at modeling clinical inquiry for reliable medical decision-making.

Date not disclosed · Official · Baichuan platform sitePlatform pricing page includes Baichuan-M3-Plus token pricing

Baichuan’s platform site publishes token pricing information for model calls, including a line item for Baichuan-M3-Plus with stated input token cost.

Date not disclosed · Official · Baichuan platform siteBaichuan4-Turbo and Baichuan4-Air presented as newly released platform models

Baichuan’s platform homepage presents Baichuan4-Turbo and Baichuan4-Air as newly released model options, with stated positioning around enterprise performance and cost.

Date not disclosed · Official · Baichuan siteCompany homepage positions a model lineup including Baichuan-M3, Baichuan-M2 and Baichuan4-family

Baichuan’s homepage summarizes its model family lineup and includes performance/parameter and benchmark-oriented claims for several models.

Source map · 4 recurring channels · 23 references

Still resolving: Newsroom

Funding

Latest disclosed valuation$2.8B
Tracked capital$1.1B4 sourced rounds

What it builds

Baichuan4-Turbo

Baichuan4-Turbo is positioned as a general-purpose model optimized for enterprise high-frequency scenarios, with claims of improved usability versus Baichuan4, and lower deployment/inference cost.

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Baichuan4-Air

Baichuan4-Air is positioned as a lower-cost, faster general-purpose option using a MoE architecture approach, targeted at cost-sensitive enterprise deployments.

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Baichuan4

Baichuan4 is positioned as a flagship general-purpose model supporting “search agent” behavior, long-window capability, and multimodal use.

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Baichuan-M3

Baichuan-M3 is a medical-enhanced large language model presented as open and commercially usable, designed for clinical assistance with capabilities focused on reliable clinical inquiry behavior.

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Baichuan-M2

Baichuan-M2 is a medical-focused model presented as open and commercially usable, with associated technical materials describing training and a verifier-oriented approach.

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Baichuan2 (Baichuan2-7B / Baichuan2-13B)

Baichuan2 is a multilingual general model family presented with technical reporting and open releases across base/chat variants.

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Baichuan model service / developer platform (OpenAPI)

Baichuan’s platform site describes a model-service and agent/platform approach for enterprise integration, including a pricing page for model token calls and a set of scenario/workflow examples.

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百小医(companion/clinical assistant app experience)

“百小医” is presented on Baichuan’s site as an AI patient companion experience aimed at providing ongoing support scenarios; the site includes product terms and agreement pages for the app and service.

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Milestones & partnerships