GPT-5.2 Pro vs GPT-5.5 Pro.
model vs model · prices as of
GPT-5.2 Pro takes 4 of 5 rounds against GPT-5.5 Pro. It is also the cheaper of the two to run, at $210 per million tokens against $245.50.
OpenAIwins 4 roundsGPT-5.2 Pro
$210/M tokens
cheapest we can explain, at Poe · $20.62 per 1,000 pages
400k context · tool calling · reads images
OpenAIGPT-5.5 Pro
$245.50/M tokens
cheapest we can explain, at Poe · $26.18 per 1,000 pages
1.1M context · tool calling · reads images
List price in (lower wins)
$21/M
$30/M
List price out (lower wins)
$168/M
$180/M
Cheapest we can explain (lower wins)
$210/M at Poe
$245.50/M at Poe
Standard price (lower wins)
$231/M
$270/M
Cost per 1,000 pages (lower wins)
$20.62
$26.18
Context
400k tokens
1.1M tokens
Open weights
no
no
Tool calling
yes
yes
Structured output
no
yes
Reads images
yes
yes
Reasoning
yes
yes
Released
11 Dec 2025
23 Apr 2026
Providers selling it
13
21
Price we measure against
the maker's own
the maker's own
Trains on your prompts (no is better)
not stated
not stated
Providers selling both · 13
Poe$210 / $245.50
Jiekou$219.40 / $270
Eden AI$231 / $270
FastRouter$231 / $270
Kilo Gateway$231 / $270
LLM Gateway$231 / $270
Nous Portal$231 / $270- OpenAI$231 / $270
GPT-5.2 Pro then GPT-5.5 Pro, per million tokens · showing the 8 cheapest of 13
Go further
Add a third or fourth model, or switch the weighting, in the tool.
What moved in the last seven days
- GPT-5.2 ProNous Portal$16.80 / $134.40 $21 / $16825% dearer ·
- GPT-5.5 ProNous Portal$24 / $144 $30 / $18025% dearer ·
Frequently asked
- Which is cheaper, GPT-5.2 Pro or GPT-5.5 Pro?
- GPT-5.2 Pro, at $210 per million tokens against $245.50 for GPT-5.5 Pro, three parts input to one part output, read on 16 Sept 2026.
- Where is each one cheapest?
- GPT-5.2 Pro: $210 at Poe. GPT-5.5 Pro: $245.50 at Poe.
- Can I buy both from one provider?
- Yes. 13 providers sell both: Poe, Jiekou, Eden AI, FastRouter, Kilo Gateway, LLM Gateway, and more. The cheapest of them for the two together is Poe.
- Which holds more context?
- GPT-5.5 Pro, at 1.1M tokens against 400k.
Prices exclude tax and are per million tokens, read 16 Sept 2026 from each provider's own catalog. The standard price blends three parts input to one part output; a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.