GPT-OSS 120B
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A to Z
- A · App
- No
- B · Built By
- OpenAI
- C · CEO & Politics
- Sam Altman — Independent; self-described 'politically homeless' (2025); former Democratic donor; $1M personal donation to Trump inaugural fund (2025)
- 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
- USA
- K · Key Staffers
- Greg Brockman (President), Jakub Pachocki (Chief Scientist), Brad Lightcap (COO), Fidji Simo (CEO Applications), Sarah Friar (CFO), Mark Chen (SVP Research), Denise Dresser (CRO)
- L · Languages
- English-primary
- M · Model Type
- LLM
- N · Safety Issues
- None reported
- O · Open Source
- Yes — open weights
- P · Pricing
- Free (open weights, Apache 2.0)
- Q · AIDb Rating
- [UNKNOWN]
- R · What Makes It Special
- OpenAI's gpt-oss-120b (August 5, 2025), the larger of its two Apache 2.0 open-weight gpt-oss reasoning models: a mixture-of-experts model with 117B parameters (5.1B active per token) that OpenAI says reaches near-parity with o4-mini on core reasoning benchmarks while running on a single 80 GB GPU such as an H100. It has a 128K-token context, adjustable reasoning effort, full chain-of-thought access, tool use such as web search and Python execution, and fine-tuning, with weights on Hugging Face.
- S · Stock / Status
- Private (~$852B valuation, Mar 2026)
- T · Training Cutoff
- [UNKNOWN]
- U · Users
- [UNKNOWN]
- V · Voice Chat
- No
- W · Weights
- Downloadable
- X · X Handle
- @OpenAI
- Y · Year Founded
- [UNKNOWN]
- Z · Bottom Line
- Open-weights LLM from OpenAI, released 2025.
Data completeness 85% · Last verified 2026-05-12 · Primary source ↗
Cite this
“GPT-OSS 120B.” AIDb — The AI Database. Verified 2026-05-12. https://theaidatabase.com/m/gpt-oss-120b.html
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