# GPT-4 (slim)

> GPT-4, a family of models by OpenAI, listed from OpenRouter. Indexed, not reviewed: facts and our own checks, no score or ranking. GPT-4.1 is a flagship large language model optimized for advanced instruction following, real-world software engineering, and long-context…

- Full: https://www.anchorterminal.com/tools/gpt-4.md (~500 tokens) · this version ~430 tokens · JSON https://www.anchorterminal.com/tools/gpt-4.json · canonical https://www.anchorterminal.com/tools/gpt-4
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

# GPT-4

> 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-4.1 is a flagship large language model optimized for advanced instruction following, real-world software engineering, and long-context reasoning. It supports a 1 million token context window and outperforms GPT-4o and...

## Models (2)

| Model | OpenRouter id | Released | Context | Input $/1M | Output $/1M | Supports |
| --- | --- | --- | --- | --- | --- | --- |
| GPT-4.1 | `openai/gpt-4.1` | 2025-04 | 1.05M | $2 | $8 | tools, structured output, caching, file, image |
| GPT-4 | `openai/gpt-4` | 2023-05 | 8k | $30 | $60 | 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-4.json
- Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming