OpenAI: GPT-5.6 Terra

openai/gpt-5.6-terra

GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic tasks where capability and cost need to be balanced, offering strong performance at roughly half the cost of Sol.

Model specifications

Input
text, image, file
Output
text
Context
1,050,000 tokens
Max output
128,000 tokens
Input price
$2 / 1M tokens
Output price
2 / 1M tokens
Released
2026-07-10

Capabilities

  • Streaming
  • Function calling
  • Vision
  • JSON mode

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 / 1M tokens · tier output average $6 / 1M tokens

OpenAI

Tier: Flex · Region: US

Pricing
Input
/ 1M tokens
Output
$6 / 1M tokens
Cache read
$0.1 / 1M tokens
Cache write
.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

Standard service tier

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

Azure

Tier: Standard · Region: US

Pricing
Input
$2 / 1M tokens
Output
2 / 1M tokens
Cache read
$0.2 / 1M tokens
Cache write
$2.5 / 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

OpenAI

Tier: Standard · Region: US

Pricing
Input
$2 / 1M tokens
Output
2 / 1M tokens
Cache read
$0.2 / 1M tokens
Cache write
$2.5 / 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

Priority service tier

1 available provider · tier input average $4 / 1M tokens · tier output average $24 / 1M tokens

OpenAI

Tier: Priority · Region: US

Pricing
Input
$4 / 1M tokens
Output
$24 / 1M tokens
Cache read
$0.4 / 1M tokens
Cache write
$5 / 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

Frequently asked questions

What is OpenAI: GPT-5.6 Terra?
GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic tasks where capability and cost need to be balanced, offering strong performance at roughly half the cost of Sol.
How much does OpenAI: GPT-5.6 Terra cost?
Input costs start at $2 / 1M tokens and output costs start at 2 / 1M tokens. Provider-level prices vary by service tier.
What is the context length of OpenAI: GPT-5.6 Terra?
OpenAI: GPT-5.6 Terra supports a 1,050,000 token context window and up to 128,000 output tokens.
What capabilities does OpenAI: GPT-5.6 Terra support?
OpenAI: GPT-5.6 Terra supports Streaming, Function calling, Vision, JSON mode.
Which providers offer OpenAI: GPT-5.6 Terra?
OpenAI: GPT-5.6 Terra is available from OpenAI, Azure.
How do providers handle data privacy for OpenAI: GPT-5.6 Terra?
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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