OpenAI: GPT-5.5

openai/gpt-5.5

GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token context window (922K input, 128K output) with support for text and image inputs, enabling large-scale reasoning, coding, and multimodal workflows within a single system.

Model specifications

Input
text, image, file
Output
text
Context
1,050,000 tokens
Max output
128,000 tokens
Input price
$5 / 1M tokens
Output price
$30 / 1M tokens
Released
2026-04-25

Capabilities

  • Streaming
  • Function calling
  • Vision
  • JSON mode
  • Playground

Provider pricing, discounts and data privacy

Compare effective provider prices, published discounts, regions, retention policies, training use, compliance, and privacy links by service tier.

Flex service tier

1 available provider · tier input average $2.5 / 1M tokens · tier output average 5 / 1M tokens

OpenAI

Tier: Flex · Region: US

Pricing
Input
$2.5 / 1M tokens
Output
5 / 1M tokens
Cache read
$0.25 / 1M tokens

No provider discount is currently published.

Data privacy and compliance
Region
US
Zero data retention
No
Data retention
Zero retention
Used for training
No
Data collection
Moderated
No
GDPR compliant
Yes
HIPAA compliant
Yes
SOC 2 certified
Yes
BYOK supported
Yes

Privacy policy · Terms · Official website · Documentation · Status

Standard service tier

2 available providers · tier input average $5 / 1M tokens · tier output average $30 / 1M tokens

Azure

Tier: Standard · Region: US

Pricing
Input
$5 / 1M tokens
Output
$30 / 1M tokens
Cache read
$0.5 / 1M tokens

No provider discount is currently published.

Data privacy and compliance
Region
US
Zero data retention
Yes
Data retention
Zero retention
Used for training
No
Data collection
Moderated
No
GDPR compliant
Yes
HIPAA compliant
Yes
SOC 2 certified
Yes
BYOK supported
No

Privacy policy · Terms · Official website · Documentation · Status

OpenAI

Tier: Standard · Region: US

Pricing
Input
$5 / 1M tokens
Output
$30 / 1M tokens
Cache read
$0.5 / 1M tokens

No provider discount is currently published.

Data privacy and compliance
Region
US
Zero data retention
Yes
Data retention
Zero retention
Used for training
No
Data collection
Moderated
No
GDPR compliant
Yes
HIPAA compliant
Yes
SOC 2 certified
Yes
BYOK supported
Yes

Privacy policy · Terms · Official website · Documentation · Status

Priority service tier

1 available provider · tier input average 2.5 / 1M tokens · tier output average $75 / 1M tokens

OpenAI

Tier: Priority · Region: US

Pricing
Input
2.5 / 1M tokens
Output
$75 / 1M tokens
Cache read
.25 / 1M tokens

No provider discount is currently published.

Data privacy and compliance
Region
US
Zero data retention
No
Data retention
Zero retention
Used for training
No
Data collection
Moderated
No
GDPR compliant
Yes
HIPAA compliant
Yes
SOC 2 certified
Yes
BYOK supported
Yes

Privacy policy · Terms · Official website · Documentation · Status

Frequently asked questions

What is OpenAI: GPT-5.5?
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token context window (922K input, 128K output) with support for text and image inputs, enabling large-scale reasoning, coding, and multimodal workflows within a single system.
How much does OpenAI: GPT-5.5 cost?
Input costs start at $5 / 1M tokens and output costs start at $30 / 1M tokens. Provider-level prices vary by service tier.
What is the context length of OpenAI: GPT-5.5?
OpenAI: GPT-5.5 supports a 1,050,000 token context window and up to 128,000 output tokens.
What capabilities does OpenAI: GPT-5.5 support?
OpenAI: GPT-5.5 supports Streaming, Function calling, Vision, JSON mode, Playground.
Which providers offer OpenAI: GPT-5.5?
OpenAI: GPT-5.5 is available from OpenAI, Azure.
How do providers handle data privacy for OpenAI: GPT-5.5?
2 of 2 providers report that customer data is not used for training, and 1 offer zero-data-retention routing. Retention, compliance, and privacy-policy links are listed per provider.

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