OpenAI: GPT-5.2 Pro
gpt-5.2-pro- Input / Output
- $21.00 / $168.00
- Context
- 272K
- Max output
- 128K
- Modalities
- VisionChat
- Capabilities
- Tool usePrompt Cache
About GPT-5.2 Pro
GPT-5.2 Pro is the higher-compute tier of GPT-5.2, described by OpenAI as a previous-generation professional model. It reasons at medium, high, or xhigh effort, takes text and images, and answers in text. Requests can take several minutes, so it fits difficult, low-volume tasks. OpenAI recommends GPT-5.5 Pro for the latest pro model.
Where it works well
- Reasoning effort starts at medium and goes up to xhigh, so every request gets real deliberation.
- Same August 2025 knowledge cutoff as GPT-5.2.
- Supports function calling, file search, web search, and MCP.
- Image input is accepted alongside text for diagram and document questions.
When to choose another model
- It has no none or low effort, so quick answers go to standard GPT-5.2.
- Output is text only, never images or audio.
- It is a previous-generation pro tier, and GPT-5.5 Pro is recommended instead.
Getting started
Create API key
Create a key in Console, then use it with every model on the platform.
Send your first request
Copy the example for your language and run it against the endpoint.
Text to textResponses APIPOST/v1/responsesAPI format:curl https://api.tokenlab.sh/v1/responses \ -H "Content-Type: application/json" \ -H "Authorization: Bearer sk-xxx" \ -d '{ "model": "gpt-5.2-pro", "input": "Hello!" }'
Pricing
The Verified price applies to Verified, which costs less on most models. The Official price is the model maker's published price and applies to the more reliable Official route. Auto bills the route that completes the request.
Text to text
per 1M tokens- Official price
- Input $21.00 / Output $168.00
- Verified price
- —
- Discount
- —
Charged per call, only when the model uses the tool.
Web search
- Official price
- $0.01/search
- Verified price
- —
- Discount
- —
| Official priceper 1M tokens | Verified priceper 1M tokens | Discount | |
|---|---|---|---|
| Text to text | Input $21.00 / Output $168.00 | — | — |
| Tool feesCharged per call, only when the model uses the tool. | |||
| Web search | $0.01/search | — | — |
Usage & activity
Success rate is the share of requests that completed. Latency is how long a full response takes; P95 means 95% of requests finished within that time.
Usage & availability
Last 24 hours- Requests
- Success rate
- P95 latency
- Total tokens
Data is based on aggregate user requests, excluding status checks.
Open in Console
Open GPT-5.2 Pro in Console with a prompt ready to edit or send.
Help me try gpt-5.2-pro with a short message at /v1/responses. Show the reply, latency, and cost.
Use cases
Best for- Vision
Expert-level review
Check a contract, proof, or design for flaws when a miss is expensive.
Hard debugging
Trace a bug through several services where lighter models gave inconsistent answers.
Quantitative reasoning
Work through multi-step calculations and show the full derivation so each step can be checked.
Large-scale planning
Build a detailed plan with dependencies and risks and have it review the sequencing.
Prompt examples
Find the logical flaw in this proof sketch and rewrite the step correctly.
Trace this intermittent timeout across the three service logs and name the most likely cause.
Compare these two vendor contracts and list the clauses where our liability differs.
This model has conditional pricing. Monthly token totals alone cannot produce a reliable estimate; use the detailed pricing for the request specification, cache, and applicable time window.
FAQ
What is GPT-5.2 Pro?
GPT-5.2 Pro is OpenAI's high-compute variant of GPT-5.2, built for problems where the standard model is not accurate enough and a slow answer is acceptable.
Which reasoning efforts does GPT-5.2 Pro support?
It supports medium, high, and xhigh effort. There is no none or low setting, so every request gets a real reasoning phase before the answer is returned.
Why is GPT-5.2 Pro slow?
It spends extra compute on every answer, and OpenAI warns that complex requests may take several minutes. Allow a long client timeout for these calls.
Can GPT-5.2 Pro call tools?
Yes. OpenAI lists function calling, file search, web search, and MCP for it. Each call adds to the reasoning time, so tool-heavy flows run slower than on standard GPT-5.2.
Should I use GPT-5.2 Pro or GPT-5.5 Pro?
OpenAI recommends GPT-5.5 Pro as the latest pro model. Use GPT-5.2 Pro only if you have evaluated prompts against it that you do not want to change.
How much does GPT-5.2 Pro cost?
On TokenLab, GPT-5.2 Pro costs Input $21.00 / Output $168.00 per 1M tokens. The pricing table above shows the full breakdown. Rates depend on the billing unit, specification, and usage. Compare matching conditions in the model's detailed pricing; a single rate does not determine the total cost.
What are the context window and output limit of GPT-5.2 Pro?
GPT-5.2 Pro accepts up to 272,000 tokens of context and returns up to 128,000 tokens in one response.
Which endpoint should GPT-5.2 Pro use?
Use https://api.tokenlab.sh/v1/responses for GPT-5.2 Pro. The request example below shows the matching code shape.
Which operations does GPT-5.2 Pro support?
GPT-5.2 Pro supports Text to text. Select an operation above to see its endpoint and request example.
Compare GPT-5.2 Pro
Sources
Reviewed Oct 2, 2026
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