Scheduled for retirement on Oct 26, 2027. Still available at the prices below until then.
Context
1.1M
Max output
128K
Serving providers
6
Cheapest input
$5.00 /1M
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.

Benchmarks

independent evaluations · source: ARC Prize and Artificial Analysis
Speed & latency
Output speed
102 t/s
tokens / second
Time to first token
70.60s
latency
Headline indices
74.9
of 100
Frozen Sep 9, 2026
37.3
of 100
Frozen Sep 9, 2026
Individual benchmarks · click a row for effort variants
BenchmarkBest scoreEffortCost / task
Aa Analyst Agent0.5default—
AA-BriefcaseUndated33%default—
APEX Agents38%default—
ARC-AGI-285%xhigh$1.87
Automation Bench0.5default—
CritPt27%default—
GDPval v2Frozen Aug 18, 20261490.2default—
GPQA Diamond94%default—
Harvey Lab0.9default—
Humanity's Last Exam46%default—
IFBench76%default—
IT-Bench SRE46%default—
Long-Context Reasoning84%default—
Mlcr OverallFrozen Sep 9, 20260.2default—
MMMU-Pro81%medium—
Omniscience20.5default—
Omniscience Accuracy0.6default—
Omniscience Non Hallucination0.1low—
SciCode56%high—
Terminal Bench400.1default—
TerminalBench Hard61%default—
TerminalBench v2.184%default—
τ-bench Banking39%default—
τ²-bench94%default—
Artificial Analysis last published scores for this benchmark on Sep 9, 2026. Scores here are frozen at that date, and models released since are not on it.
We cannot tell whether this benchmark is still being published. Treat these scores as undated.
Artificial Analysis last published scores for this benchmark on Aug 18, 2026. Scores here are frozen at that date, and models released since are not on it.

Pricing detail

cost beyond the standard rate · source: models.dev
Long context (>200K)
$10.00 / $45.00
input / output · per 1M

Pricing by serving provider

standard tier · per 1M tokens · click a provider to expand
Serving providerInput /1MOutput /1MEndpoints
Aihubmix$5.00$30.001
Azure$5.00$30.001
Amazon Bedrock$5.00$30.001
OpenAICheapest$5.00$30.001
Standardgpt-5.5
ComponentUnitStandardBatch
Text cached in/1M tok$0.50—
Text input/1M tok$5.00$2.50
Text output/1M tok$30.00$15.00
OpenRouter$5.00$30.001
VercelVercel reseller quote$5.00$30.001
OpenRouter (batch)$2.50$15.001
Vercel (flex)Vercel reseller quote$2.50$15.001
Vercel is dearest at $12.50 / $75.00

Price history

listed seller prices, input and output per 1M tokens
Input Output
$0.00$10.00$20.00$30.00Apr 23Apr 25Sep 16Sep 25$30.00$5.00

Cost calculator

estimate your monthly spend on this model
$3,400
estimated / month

Model IDs

copy the exact identifier for your platform
openai/gpt-5.5:batchopenai/gpt-5.5gpt-5.5azure/gpt-5.5openai/gpt-5.5aihubmix/gpt-5.5global.openai.gpt-5.5openai/gpt-5.5openai/gpt-5.5openai/gpt-5.5-fastopenai/gpt-5.5

Frequently asked questions

GPT-5.5 pricing, context and availability

Is GPT-5.5 still available?

Yes. GPT-5.5 is scheduled for retirement on 2027-10-26.

How much does GPT-5.5 cost?

GPT-5.5 costs $5.00 per 1M input tokens from OpenAI, and $30.00 per 1M output tokens from OpenAI.

What is the context window of GPT-5.5?

GPT-5.5 accepts up to 1.1M tokens of context and can return up to 128K output tokens.

Which providers serve GPT-5.5?

GPT-5.5 is available from 6 serving providers, each with its own pricing and model ID. OpenAI is currently the cheapest.

What can GPT-5.5 do?

GPT-5.5 supports image input (vision), tool use, reasoning, prompt caching, structured output and web search.

Other OpenAI models

compare pricing across the OpenAI lineup

Popular comparisons

head-to-head pages featuring GPT-5.5
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026

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