GPT-5.1
| GPT-5.1 | |
|---|---|
| Developer | OpenAI |
| Initial release | November 12, 2025 |
| Included with | |
| Predecessor | GPT-5 |
| Successor | GPT-5.2 |
| Type | |
| License | Proprietary |
| Website | openai |
| Part of a series on |
| OpenAI |
|---|
| Products |
| Models |
| People |
| Concepts |
GPT-5.1 is a family of four large language models within OpenAI's GPT series. Two were released on November 12, 2025;[1] two more were released one week later on November 19.
Features
GPT-5.1 adds "shopping research", multimodal features, and customizable personalities;[2] it has 8 personality options.[3][4] OpenAI describes it as having a "warmer personality" by default compared to GPT-5.[1]
GPT-5.1 is available to all users, though paid Pro, Plus, Go, and Business users were given advanced access.[5]
Models
The model consists of two modes: GPT-5.1 Instant and GPT-5.1 Thinking, the latter being a reasoning model designed for more complex tasks.[6]
On November 19, 2025, OpenAI released GPT‑5.1-Codex-Max, an agentic coding model.[7] GPT-5.1 Pro was also released on the same day, replacing GPT-5 Pro.[8]
Reception
Critical reviews
Amanda Caswell from Tom's Guide praised GPT-5.1 for its mathematical reasoning and coding abilities, but decided that Gemini 3 produced better results overall.[9]
Writing for TechRadar, Eric Hal Schwartz compared GPT-5.1 to GPT-5 and found the new model to be more consistent in following prompts. He also considered it an "incremental improvement".[10]
References
- ^ a b "OpenAI says the brand-new GPT-5.1 is 'warmer' and has more 'personality' options". The Verge. November 13, 2025.
- ^ "openai-launches-chatgpt-5-1-with-8-new-personalities-warmer-tone-and-quicker-replies". November 12, 2025.
- ^ Hughes, Alex (November 13, 2025). "ChatGPT-5.1 offers 8 different personalities to choose from — here's how to use them". Tom's Guide. Retrieved November 13, 2025.
- ^ Mannan, Jasmine (November 13, 2025). "I love Gemini, but the GPT 5.1 update could make ChatGPT the AI bot you want to use". Digital Trends. Retrieved November 13, 2025.
- ^ Schäfer, Michael (November 13, 2025). "OpenAI GPT 5.1: KI wird nicht nur intelligenter, sondern auch freundlicher". ComputerBase (in German). Retrieved November 19, 2025.
- ^ Edwards, Benj (November 12, 2025). "OpenAI walks a tricky tightrope with GPT-5.1's eight new personalities". Ars Technica. Retrieved November 14, 2025.
- ^ Franzen, Carl (November 19, 2025). "OpenAI debuts GPT‑5.1-Codex-Max coding model and it already completed a 24-hour task internally". VentureBeat. Retrieved November 22, 2025.
- ^ "ChatGPT — Release Notes". OpenAI. Retrieved November 25, 2025.
GPT-5.1 Pro: Clearer, more capable answers for complex work
- ^ Caswell, Amanda (November 19, 2025). "I just tested Gemini 3 vs ChatGPT-5.1 — and one AI crushed the competition". Tom's Guide. Retrieved November 19, 2025.
- ^ Schwartz, Eric Hal (November 14, 2025). "I compared GPT-5.1 to GPT-5 on ChatGPT, and now I don't want to go back". TechRadar. Retrieved November 19, 2025.