GPT-5.6 Terra (AWS Mantle) API
About
Build advanced reasoning agents with GPT-5.6 Terra (AWS Mantle), a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $2.20/1M input and $13.20/1M output tokens, native tool calling support. Access GPT-5.6 Terra (AWS Mantle) via the LLM Gateway API with up to 128K output tokens.
Capabilities
Input Modalities
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Output Modalities
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Limits
Context Window
279K
Tokens
Input Limit
279K
Tokens
Max Output
128K
Tokens
Pricing
Standard (per 1M tokens)
Input
$2.20
Output
$13.20
Caching (per 1M tokens)
Read
$0.22
Write
$2.75
Frequently Asked Questions
GPT-5.6 Terra (AWS Mantle) by LLM Gateway costs $2.20 per 1M input tokens and $13.20 per 1M output tokens. Cached reads cost $0.22 per 1M tokens. Cache writes cost $2.75 per 1M tokens.
Model Details
ID
aws-mantle/gpt-5.6-terra
Provider
LLM GatewayFamily
gpt-terra
Release Date
Jul 9, 2026
Knowledge Cutoff
Feb 16, 2026
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
LLMGATEWAY_API_KEY
API Base URL
https://api.llmgateway.io/v1