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OpenAI
Hosted by a provider reached through SayGM. The route is sealed in transit and in use; the provider receives the prompt under its API terms.
Released
Apr 2026Knowledge cutoff
Dec 2025Modalities
Text · Tool calling · Image inputBest price on SayGM
In
Cached
Out
per Mtok*
SayGM has no current discount reading for gpt-5.5-pro — check back once the next window closes.
What buyers have actually paid on this model recently, across every provider and cache hits.
Input
$26.67
$30.00Cached input
up to $3.00
Output
$160.01
$180.00Requests are load balanced across every provider serving this model, each offering its own rate, so what you pay is a blend rather than a single number. These are the blended rates actually paid — priced at what a provider offered, capped at list.
Measured over 168 windows: 1,158 requests and 119,043 input-side tokens, short of the 2,000,000 tokens the window walks for. Most recent window closed 2026-09-13 18:28 UTC.
Every provider currently serving this model, ranked by discount.
No provider is currently serving this model.
Measured on the requests SayGM routed to this model.
Nothing has been measured for this model yet. Throughput and latency are recorded on streaming requests, and the success rate once any request completes.
No requests were served on this model across the last 12 windows.
Fixed-seed suites SayGM runs against this model.
No benchmark run has been published for this model.
gpt-5.5-pro lists at $30.00 per million input tokens and $180.00 per million output tokens on SayGM. A request above 272,000 input tokens bills at SayGM's long-context rate instead.
No. gpt-5.5-pro is served only on SayGM's OpenAI Responses surface (/v1/responses), not the chat/completions endpoint — point the OpenAI SDK's Responses client at it instead.