GPT-5.5 is OpenAI's language model with a 1.1M context window and up to 128K output tokens, available from 9 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 · 5 months ago
Knowledge Cutoff · 10 months ago
Deprecation Date
Benchmarks
Intelligence Index
#36
Coding Index
#13
GPQA
#12
HLE
#20
IFBench
#26
Time to First Token
#402
SciCode
#24
LCR
#6
TerminalBench Hard
#4
TAU2
#40
Output TPS
#131

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
ProviderStandardFlexFastLong contextBatch
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Cache Write 5m
$ / 1M
Web Search
$ / request
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Input
$ / 1M
Output
$ / 1M
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Web Search
$ / request
Aihubmix
aihubmix/gpt-5.5
$5.00$30.00$0.5N/AN/A————————————
Amazon Bedrock logo
Amazon Bedrock
bedrock_mantle/openai.gpt-5.5
$5.50$33.00$0.55N/AN/A————————————
Amazon Bedrock logo
Amazon Bedrock
global.openai.gpt-5.5
$5.00$30.00$0.5N/AN/A————————————
Azure AI Foundry logo
Azure AI Foundry
azure_ai/gpt-5.5
————————$10.00$60.00$1.00——N/AN/AN/AN/A
Azure AI Foundry logo
Azure AI Foundry
azure/eu/gpt-5.5
$5.50$33.00$0.55N/AN/AN/AN/AN/A$13.75$82.50$1.38——$2.75$16.50N/AN/A
Azure AI Foundry logo
Azure AI Foundry
azure/gpt-5.5
$5.00$30.00$0.5N/AN/A$2.50N/A$0.25$12.50$75.00$1.25——$2.50$15.00N/AN/A
Databricks logo
Databricks
databricks/databricks-gpt-5-5
$5.00$30.00$0.5$5.00N/A————————————
OpenAI logo
OpenAI
gpt-5.5
$5.00$30.00$0.5N/AN/A$2.50$15.00$0.25$12.50$75.00$1.25——$2.50$15.00$0.25N/A
OpenRouter logo
OpenRouter
openai/gpt-5.5
$5.00$30.00$0.5N/A$0.010————————N/AN/AN/AN/A
OpenRouter logo
OpenRouter
openai/gpt-5.5:batch
—————————————$2.50$15.00$0.25$0.010
Perplexity logo
Perplexity
perplexity/openai/gpt-5.5
$5.00$30.00$0.5N/AN/A————————————
Snowflake logo
Snowflake
openai-gpt-5.5
$6.00$36.00N/AN/AN/A——————$12.00$54.00$3.00$18.00N/AN/A
Vercel AI Gateway logo
Vercel AI Gateway
openai/gpt-5.5
$5.00$30.00$0.5N/AN/A$2.50$15.00$0.25$12.50$75.00$1.25——————

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
GPT-6.1 Sol1.1M$2.00$10.00Available
GPT-6 Sol1.1M$2.00$10.00Available
GPT-6 Luna1.1M$0.100$0.500Available
GPT-6 Astra1.1M$10.00$50.00Available
GPT-5.6 Sol1.1M$2.00$10.00Available
GPT-5.6 Terra1.1M$2.00$12.00Available
GPT-5.6 Luna1.1M$0.200$1.20Available
GPT-5.51.1M$5.00$30.00Current
GPT-5.4 Mini400K$0.750$4.50Available
GPT-5.4 Nano400K$0.200$1.25Available
GPT-5.41.1M$2.50$15.00Available

Model IDs

aihubmix/gpt-5.5
azure_ai/gpt-5.5
azure_ai/gpt-5.5-2026-04-23
azure_ai/gpt-5.5-2026-04-24
azure/eu/gpt-5.5
azure/eu/gpt-5.5-2026-04-23
azure/eu/gpt-5.5-2026-04-24
azure/gpt-5.5
azure/gpt-5.5-2026-04-23
azure/gpt-5.5-2026-04-24
azure/us/gpt-5.5
azure/us/gpt-5.5-2026-04-23
azure/us/gpt-5.5-2026-04-24
bedrock_mantle/openai.gpt-5.5
chatgpt/gpt-5.5
databricks/databricks-gpt-5-5
global.openai.gpt-5.5
gpt-5-5
gpt-5-5-high
gpt-5-5-instant-05-26
gpt-5-5-instant-06-26
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
openai/gpt-5.5
openai/gpt-5.5:batch
openrouter/openai/gpt-5.5
perplexity/openai/gpt-5.5
us.openai.gpt-5.5