# GPT-3 Turbo (slim) > GPT-3 Turbo, a family of models by OpenAI, listed from OpenRouter. Indexed, not reviewed: facts and our own checks, no score or ranking. GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional… - Full: https://www.anchorterminal.com/tools/gpt-3-turbo.md (~550 tokens) · this version ~480 tokens · JSON https://www.anchorterminal.com/tools/gpt-3-turbo.json · canonical https://www.anchorterminal.com/tools/gpt-3-turbo - Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04 # GPT-3 Turbo > Indexed, not reviewed: facts from OpenRouter and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/ - Kind: model family, by OpenAI - Category: Model APIs & inference (https://www.anchorterminal.com/categories/inference.md) - Listed because: OpenRouter lists it, with prices from the providers that serve it. - What OpenRouter says: GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks. Training data up to Sep 2021. ## Models (3) | Model | OpenRouter id | Released | Context | Input $/1M | Output $/1M | Supports | | --- | --- | --- | --- | --- | --- | --- | | GPT-3.5 Turbo (older v0613) | `openai/gpt-3.5-turbo-0613` | 2024-01 | 4k | $1 | $2 | tools, structured output | | GPT-3.5 Turbo Instruct | `openai/gpt-3.5-turbo-instruct` | 2023-09 | 4k | $1.50 | $2 | structured output | | GPT-3.5 Turbo | `openai/gpt-3.5-turbo` | 2023-05 | 16k | $0.50 | $1.50 | tools, structured output | Prices and limits as OpenRouter lists them; a provider's own price can differ. - JSON: https://www.anchorterminal.com/api/v1/tools/gpt-3-turbo.json - Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming