GPT-5.2 Pro
OpenAI · released Dec 10, 2025
- Type
- Proprietary
- Input
- $21.00
- Output
- $168.00
- Cached
- Not published
List price · per 1M tokens · OpenAI at 400K context · source ↗
Our take
Written Aug 3, 2026GPT-5.2 Pro is a proprietary reasoning model from OpenAI that can handle up to 400,000 tokens in a single request and accepts text, images and files together. It is built for deep-document work where extended context matters more than cost, though its quality remains unverified in our data.
Choose this when you need to reason across very long documents or mixed inputs — text, images and files together — and proprietary hosting is acceptable. Use it where 400,000 tokens of context is genuinely required and cost is secondary. Skip it if you need measured quality scores, fast production throughput, or a transparent parameter count.
The case for it
- Among the largest request limits we track, at 400,000 tokens — built for extended documents.
- Handles text, images and files in a single prompt, enabling multimodal reasoning workflows.
The case against it
- Very high inference cost on both available providers, with slow direct-hosting throughput at six tokens per second.
- No benchmark scores in our data, so quality is unverified.
- Parameter count undisclosed by the vendor.
How good is it?
We hold no score for this model.
We look for every model we track on every board we watch, and none of them has turned up GPT-5.2 Pro — so there is no intelligence, coding, agentic or writing score to show you, not a low one, none.
Or rent it from someone else
Why this differs from the header. The strip above quotes OpenAI's own list price. This is the cheapest live offer at the widest standard context we hold, whoever is serving it — a reseller undercutting a lab is ordinary commerce, not an error.
- per 1M tokens
- $21.00 in / $168.00 out
- Context served
- 400K
- Throughput
- Not measured
| Provider | In / out per 1M tokens | Context | Throughput | Trains on prompts | Logs prompts | Zero retention |
|---|---|---|---|---|---|---|
| OpenRouter | $21.00 / $168.00 | 400K | not measured | Unknown | Unknown | Unknown |
| OpenAI | $21.00 / $168.00 | 400K | 7 tok/s | No | Yesunknown period | Unknown |
Across the 2 listings we hold: 1 say they do not train on prompts, 0 say they do and 1 do not say. 0 appear in the zero-retention registry we check; the rest are unknown to us rather than confirmed either way.
What each host's API supports
From the parameter list each endpoint publishes. Streaming is omitted: nothing we hold reports it, for any model.
- ✓
- Supported
- ✗
- Not supported
- Not published
- host gave no parameter list
| Provider | Tool calling | JSON output | Strict schema |
|---|---|---|---|
| OpenRouter | ✓ | ✓ | ✓ |
| OpenAI | ✓ | ✓ | ✓ |
Tool calling: 2 of 2 listings say yes. JSON output: 2 of 2 listings say yes. Strict schema: 2 of 2 listings say yes.
Models people weigh against GPT-5.2 Pro
When we formed this view
Dates behind this page
Prices last checked 9d ago
What we do not know about this model yet
- No board we watch has turned up a score, so we hold no quality figures at all.
- Nothing we hold says whether an endpoint streams, so we do not show it either way.
- 1 of 2 listings do not say whether they train on prompts.
- We hold no cached-input rate for any of its listings.
Licence and identifiers
What the licence allowsWe hold no licence record for this model. Inside are the identifiers you need to pull it — its Hugging Face repo where we have one, our slug and a machine-readable card.
Licence
Commercial API terms. We hold no licence record for this model, so there is nothing to summarise here.
Identifiers
- Modality record
- text+image+file->text
- Catalogue slug
- openai-gpt-5-2-pro