OpenAI · language model
GPT-5.2 Chat: pricing, context and benchmarks
GPT-5.2 Chat is OpenAI's model released on December 10, 2025. It costs $1.75 per million input tokens and $14 per million output tokens, with a 128K-token context window. No independent score has been published for it so far.
What you need to know about GPT-5.2 Chat
OpenAI, based in United States, put GPT-5.2 Chat online on December 10, 2025. It accepts files, images, and text as input and produces text. Its context window reaches 128,000 tokens, larger than 19 % of the models in the registry, and it can write up to 32,000 tokens in one go.
It has been available for about 10 months, long enough for its prices and scores to have settled.
GPT-5.2 Chat pricing
On OpenRouter, GPT-5.2 Chat costs $1.75 per million input tokens and $14 per million output tokens. Counting three tokens read for every token written, its average price is $4.813 per million, more expensive than 89 % of paid models (6.3 times the median of $0.76).
A concrete example: a task that sends 2,000 tokens (about 1,500 words) and receives a 500-token answer costs $0.0105. At 1,000 tasks a day, budget $315 a month. The price calculator redoes this with your own volumes.
Tokens already sent and cached are billed at $0.175 per million.
Performance and benchmarks
Epoch AI does not yet publish a capabilities index for GPT-5.2 Chat. We therefore show no made-up performance rating: only price, context and features count towards its score.
Features, privacy and local use
- It supports tool calling, so it can drive an AI agent, call APIs or MCP servers.
- It can answer in an enforced JSON format (structured outputs).
Its weights are not published: it can only be used through the OpenAI API or a broker such as OpenRouter, which means sending your data off your machines.
Other OpenAI models
| Model | Released | Avg. price | ECI |
|---|---|---|---|
| GPT-6.1 Sol | Sep 29, 2026 | $4 | 168.4 |
| GPT-6.1 Sol Pro | Sep 29, 2026 | $4 | — |
| GPT-6 Sol | Sep 22, 2026 | $4 | 163.7 |
| GPT-6 Luna | Sep 22, 2026 | $0.2 | 156.8 |
| GPT-6 Luna Pro | Sep 22, 2026 | $0.2 | — |
| GPT-6 Sol Pro | Sep 22, 2026 | $4 | — |
| GPT-6 Astra | Sep 4, 2026 | $20 | 168.8 |
| GPT-6 Astra Pro | Sep 4, 2026 | $20 | — |
Verdict
Computed score: 23/100, from public data (performance, price, context, features).
Strengths
- Agent-ready: tool calling and structured JSON output.
Limitations
- Expensive: costlier than 89 % of paid models.
- No independent score published: performance cannot be verified.
Avoid if…
- you process large volumes on a tight budget;
- your data must not leave your servers.
Alternatives
Comparisons and tools
Learn more
Frequently asked questions
How much does GPT-5.2 Chat cost?
$1.75 per million input tokens and $14 per million output tokens on OpenRouter (checked October 25, 2026). A task with 2,000 tokens read and 500 written costs $0.0105.
How big is GPT-5.2 Chat's context window?
128,000 tokens, roughly 96,000 words, with a maximum of 32,000 output tokens.
Can GPT-5.2 Chat run locally?
No, OpenAI does not publish its weights: it is API-only.
Is GPT-5.2 Chat suitable for an AI agent?
Technically yes: it supports tool calling and structured outputs. Then check its cost for your volume.
What are the alternatives to GPT-5.2 Chat?
The closest models on price and performance are Command R+ (08-2024), Nano Banana Pro (Gemini 3 Pro Image Preview), and Nano Banana Pro (Gemini 3 Pro Image).
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score