LLM: ChatGPT
- Developer
-
OpenAI
- Current Generation
- GPT-5.6
- Generations
- GPT-3.5, GPT-4, GPT-4o, GPT-5, GPT-5.5, GPT-5.6
- Initial Release
-
2022-11-30 - Overview
- ChatGPT is OpenAI's consumer and business AI product, powered by the GPT model family. GPT-5.6 is the current generation for advanced reasoning, coding, computer use, and professional work.
- Description
- ChatGPT launched in November 2022 on GPT-3.5 and later added GPT-4, GPT-4o, the o-series reasoning models, and GPT-5. OpenAI released GPT-5.6 in July 2026 across ChatGPT, Codex, and the API. The generation includes the flagship Sol tier, the balanced Terra tier, and the fast, cost-efficient Luna tier. GPT-5.5 Instant remains available for fast everyday conversations, while GPT-5.6 powers higher-effort reasoning options on eligible plans.
- Open Source
- No
- Instruct Tuned
- Yes
- Model Sizes
-
Undisclosed - Finetuning
- Yes
- License
- NA
- Pricing
- https://openai.com/pricing
- Link
- Visit
- Further Reading