GPT-4
Summary
GPT-4 is a proprietary language model from OpenAI, released on 6 Nov 2023. It accepts text and generates text, with a 8K-token context window and up to 8K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $30 per million input tokens and $60 per million output tokens (OpenRouter), across 1 provider we track. OpenAI has deprecated this model.
GPT model for general reasoning, writing, coding, and tool-assisted tasks
Last verified 4 Oct 2026. Every figure on this page links to its source.
Specifications
| Developer | OpenAI |
|---|---|
| Release date | 6 Nov 2023 [models.dev] |
| Status | Deprecated [models.dev] |
| Weights | Proprietary (API only) [models.dev] |
| Context window | 8K (8,192 tokens) [models.dev] |
| Max output | 8K tokens [models.dev] |
| Knowledge cutoff | Nov 2023 [models.dev] |
| Input | Text [models.dev] |
| Output | Text [models.dev] |
| Reasoning mode | No [models.dev] |
| Tool calling | Yes [models.dev] |
| Structured output | No [models.dev] |
GPT-4 API pricing by provider
USD per million tokens. Sorted by input price.
| Provider | Input | Output | Cached input | Context | Source |
|---|---|---|---|---|---|
| OpenRouter openai/gpt-4 | $30 | $60 | – | 8K | OpenRouter, 4 Oct 2026 |
Frequently asked questions
What is the context window of GPT-4?
GPT-4 has a context window of 8,192 tokens (8K) and can generate up to 8,192 tokens in a single response, according to models.dev.
How much does the GPT-4 API cost?
GPT-4 is listed from $30 per million input tokens and $60 per million output tokens (OpenRouter). Prices last verified 4 Oct 2026.
Is GPT-4 open source?
No. GPT-4 is a proprietary model; OpenAI has not released its weights. It is available through APIs including OpenRouter.
When was GPT-4 released?
OpenAI released GPT-4 on 6 Nov 2023, according to models.dev.
Change history
No changes detected since we started tracking this model. We re-check every source daily.