Intern-S1
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A to Z
- A · App
- No
- B · Built By
- Shanghai AI Laboratory/SenseTime
- C · CEO & Politics
- [UNKNOWN]
- D · Date
- 2025
- E · Expertise
- Intermediate+
- F · Free Tier
- Yes
- G · Generates
- Text only
- H · Deployment
- Cloud + Local (open weights)
- I · Inputs
- Text
- J · Jurisdiction
- China
- K · Key Staffers
- Tang Xiao-ou (Founder SenseTime)
- L · Languages
- Chinese-primary
- M · Model Type
- Reasoning LLM
- N · Safety Issues
- None reported
- O · Open Source
- Yes — open weights
- P · Pricing
- Free (open weights, Apache 2.0)
- Q · AIDb Rating
- 4/10 · AIDb v2.0 (rule-based): Capability 4/10 · Currency 4/10 · Access 2/10 · Significance 4/10 → 3.70
- R · What Makes It Special
- Intern-S1, the InternLM team's open (Apache 2.0) scientific multimodal reasoning model: a mixture-of-experts model with 241B total and 28B active parameters, built on Qwen3's 235B MoE language model and a 6B InternViT vision encoder, continually pre-trained on 5 trillion tokens, over 2.5 trillion of them scientific, with a dynamic tokenizer for molecular formulas, protein sequences and seismic signals. Its card reports 83.5 on MMLU-Pro, 77.7 on MMMU, 86.0 on AIME 2025 and 83.4 on ChemBench.
- S · Stock / Status
- Government-backed research lab (Shanghai AI Laboratory)
- T · Training Cutoff
- [UNKNOWN]
- U · Users
- [UNKNOWN]
- V · Voice Chat
- No
- W · Weights
- Downloadable
- X · X Handle
- @SenseTime_AI
- Y · Year Founded
- [UNKNOWN]
- Z · Bottom Line
- Open-weights Reasoning LLM from Shanghai AI Laboratory/SenseTime, released 2025.
Data completeness 85% · Last verified 2026-06-11 · Primary source ↗
Cite this
“Intern-S1.” AIDb — The AI Database. Verified 2026-06-11. https://theaidatabase.com/m/shanghai-ai-laboratory-sensetime-intern-s1.html