GPT-5.2 Pro
by OpenAIopenai/gpt-5.2-pro
LLMCompare cannot run GPT-5.2 Pro yet.No route to this model is configured on this site yet. Its prices and parameters are listed below for reference.
See the models that can be run nowGPT-5.2 Pro at a glance
- Context length
- 400,000 tokens
- Maximum output
- 128,000 tokens
- Accepts
- Text, Image, File
- Returns
- Text
- Features
- ReasoningJSON outputTool callingImage input
- Reasoning effort levels
xhighhighmediumReasoning is always on for this model.- Released
- 10 Dec 2025
- Knowledge cutoff
- Not published
Model facts synced from the OpenRouter model list on 21 Oct 2026.
GPT-5.2 Pro pricing by route
A route is the service LLMCompare calls to reach the model. GPT-5.2 Pro has 1 route. Prices are in US dollars.
| Route | On LLMCompare | Inputper 1M tokens | Outputper 1M tokens | Price verified on | Source |
|---|---|---|---|---|---|
| OpenRouterDefault | Not configured | $21.00 | $168.00 | openrouter.ai/openai/gpt-5.2-pro |
The cost shown in an LLMCompare report is calculated from these prices as they were at the time of the run.
Cost calculator
Estimate what a batch of calls to GPT-5.2 Pro costs. The starting numbers are examples. Change them to match your task.
Billed in addition to the output tokens.
- Cost per call
- $0.105
- 126 credits
- Cost of 100 calls
- $10.50
- 12,600 credits
Calculated from the OpenRouter prices verified on 21 Oct 2026. Credits are the cost plus a 20% service fee, at $0.001 per credit, rounded up for each call, with a minimum of 1 per call. A real run is charged for the usage the provider reports.
Parameters you can set
These are the parameters LLMCompare can set when it calls the model through OpenRouter.
| Parameter | Type | Range or options | Default |
|---|---|---|---|
max_tokens | Integer | 1 to 128,000 | Provider default |
reasoning_effort | One of | xhighhighmedium | medium |
seed | Integer | -2,147,483,648 to 4,294,967,295 | Provider default |
response_format | One of | textjson_object | Provider default |
About GPT-5.2 Pro
GPT-5.2 Pro is OpenAI’s most advanced model, offering major improvements in agentic coding and long context performance over GPT-5 Pro. It is optimized for complex tasks that require step-by-step reasoning,...
Description as published for this model. LLMCompare has not edited it.
Models to compare with GPT-5.2 Pro
Text models from the same provider and models at the nearest price. The order is not a ranking.
| Add to comparison | Model | Context | Max output | Input priceper 1M tokens | Output priceper 1M tokens | Features | Released | On LLMCompare |
|---|---|---|---|---|---|---|---|---|
GPT-5.5 ProOpenAIopenai/gpt-5.5-pro | 1.05M | 128k | $30.00 | $180.00 | ReasoningJSONToolsVision | No route yet | ||
GPT-5.4 ProOpenAIopenai/gpt-5.4-pro | 1.05M | 128k | $30.00 | $180.00 | ReasoningJSONToolsVision | No route yet | ||
GPT-5 ProOpenAIopenai/gpt-5-pro | 400k | 128k | $15.00 | $120.00 | ReasoningJSONToolsVision | No route yet | ||
Claude Opus 4.1Anthropicanthropic/claude-opus-4.1 | 200k | 32k | $15.00 | $75.00 | ToolsCacheVision | No route yet | ||
Claude Fable 5.1Anthropicanthropic/claude-fable-5.1 | 1M | 128k | $10.00 | $50.00 | ReasoningJSONToolsCacheVision | No route yet | ||
Claude Fable 5Anthropicanthropic/claude-fable-5 | 1M | 128k | $10.00 | $50.00 | ReasoningJSONToolsCacheVision | No route yet |
Questions about GPT-5.2 Pro
- How much does GPT-5.2 Pro cost?
- On the OpenRouter route, GPT-5.2 Pro costs $21.00 per 1 million input tokens and $168.00 per 1 million output tokens, in US dollars. LLMCompare verified this price on 21 Oct 2026.
- What is the context length of GPT-5.2 Pro?
- GPT-5.2 Pro has a context length of 400,000 tokens and returns up to 128,000 output tokens in one call.
- What inputs does GPT-5.2 Pro accept?
- GPT-5.2 Pro accepts these inputs: Text, Image, File. GPT-5.2 Pro returns: Text.
- Which reasoning effort levels does GPT-5.2 Pro support?
- GPT-5.2 Pro supports these reasoning effort levels: xhigh, high, medium. Reasoning is always on for GPT-5.2 Pro and cannot be turned off.
- Can I test GPT-5.2 Pro on my own data?
- Not yet. LLMCompare lists the prices and parameters of GPT-5.2 Pro, but no route to GPT-5.2 Pro is configured on LLMCompare, so it cannot be selected for an evaluation.