GPT-5.5 is OpenAI's language model with a 1.1M context window and up to 128K output tokens, available from 6 providers, starting at $5.00 / 1M input and $30.00 / 1M output. A GPT-5 series large language model from OpenAI targeting high-capability reasoning and generation tasks at the xhigh performance tier.
Specifications
Canonical IDopenai-gpt-5-5
TypeLanguage
StatusActive
CreatorOpenAIOpenAI
Providers
Context Window1.1M tokens
Max Output128K tokens
Input ModalitiesImagePDFText
Output ModalitiesText
Reasoning Effortsdefaultminimalnonexhigh
Release Date · 2 months ago
Knowledge Cutoff · 7 months ago
Benchmarks
Intelligence Index
Coding Index
GPQA
0.9
#2
HLE
0.4
#4
IFBench
0.8
#24
Time to First Token
63.69s
#481
SciCode
0.6
#5
LCR
0.7
#4
TerminalBench Hard
0.6
#2
TAU2
0.9
#34
Output TPS
62.1
#190

Capabilities

Input3/5
Text
Image
Audio·
Video·
PDF
Output1/5
Text
Image·
Audio·
Video·
Embedding·
Capabilities7/13
Reasoning
Adaptive Reasoning·
Function Calling
Parallel Function Calling
Structured Outputs
Native JSON Schema
Web Search
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandardBatchLong context
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Web Search
$ / request
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Input
$ / 1M
Output
$ / 1M
Amazon Bedrock logo
Amazon Bedrock
bedrock_mantle/openai.gpt-5.5
$5.50$33.00$0.55N/A
Azure AI Foundry logo
Azure AI Foundry
azure/gpt-5.5
$5.00$30.00$0.5N/A
OpenAI logo
OpenAI
gpt-5.5
$5.00$30.00$0.5N/A$2.50$15.00$0.25
OpenRouter logo
OpenRouter
openai/gpt-5.5
$5.00$30.00$0.5$0.010
Snowflake logo
Snowflake
openai-gpt-5.5
$6.00$36.00N/AN/A$3.00$18.00N/A$12.00$54.00
Vercel AI Gateway logo
Vercel AI Gateway
openai/gpt-5.5
$5.00$30.00$0.5N/A

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
GPT-5.51.1M$5.00$30.00Current
GPT-5.4 Mini1.1M$0.750$4.50Available
GPT-5.4 Nano1.1M$0.200$1.25Available
GPT-5.41.1M$2.50$15.00Available
GPT-5.3 Codex400K$1.75$14.00Available
GPT-5.2 Codex400K$1.75$14.00Available
GPT-5.2410K$1.75$14.00Available
GPT-5.1410K$1.25$10.00Available
GPT-5.1 Codex400K$1.25$10.00Available
GPT-5.1 Codex Mini400K$0.250$2.00Available
GPT-5 Codex400K$0.125$10.00Available

Model IDs

azure/gpt-5.5
azure/gpt-5.5-2026-04-23
bedrock_mantle/openai.gpt-5.5
gpt-5-5
gpt-5-5-high
gpt-5-5-instant-05-26
gpt-5-5-low
gpt-5-5-medium
gpt-5-5-non-reasoning
gpt-5.5
gpt-5.5-2026-04-23
openai-gpt-5-5
openai/gpt-5.5