GPT-5.6 Terra

Q: Who created GPT-5.6 Terra?

GPT-5.6 Terra was created by OpenAI. OpenAI is a leading AI research company, creators of ChatGPT and the GPT series of language models.

Q: How much does GPT-5.6 Terra cost?

GPT-5.6 Terra is a premium model available to RyddleAI subscribers. It uses premium message credits from your subscription quota. Visit our pricing page for current plans.

Q: What types of input does GPT-5.6 Terra accept?

GPT-5.6 Terra is a multimodal model that supports text and image and file to text. This means you can interact with it using multiple types of content.

Q: What is GPT-5.6 Terra's context window?

GPT-5.6 Terra has a context window of 1050K tokens (approximately 787,500 words). This determines how much conversation history or input text the model can consider when generating responses.

Q: How can I use GPT-5.6 Terra on RyddleAI?

You can use GPT-5.6 Terra directly in RyddleAI's chat interface. Simply select it from the model dropdown menu, or use our model comparison feature to see how GPT-5.6 Terra responds alongside other AI models.

by OpenAI

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...

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Quick Facts

Provider

OpenAI

Model ID

openai/gpt-5.6-terra

Modality

Text and Image and File to Text

Tier

Premium

Last Updated

2026-07-22

Released

2026-07-09

Context Length

1050K tokens

Tokenizer

GPT

Input Price

$2.50/M

Output Price

$15.00/M

When To Use GPT-5.6 Terra

Best for

Coding, debugging, and implementation planning
Reasoning-heavy questions and step-by-step analysis
Research, summarization, and document work
Image understanding, screenshots, and visual questions
Comparing OpenAI responses against other leading AI models

Not ideal for

High-volume casual chats where you want to conserve premium credits
Native image generation workflows
Voice, speech, or audio transcription workflows

Input & Output

Accepts

text

image

file

Generates

text

Pricing

All prices are per 1 million tokens

Input

$2.50/M

Output

$15.00/M

Cache Read

$0.25/M

Cache Write

$3.13/M

Web Search

$10000.00/M

Capabilities

Natural language understanding and generation
Image analysis and understanding
Advanced reasoning and problem-solving
Long context window for extended conversations

Example Prompts

Review this TypeScript function for edge cases, bugs, and simpler implementation options.

Turn this product requirement into a small implementation plan with tests.

Solve this problem step by step, then summarize the final answer in one paragraph.

Summarize these notes into key findings, risks, and recommended next steps.

Analyze this screenshot and explain what is happening, including any UI issues.

Supported Parameters

include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools

Compare and Use GPT-5.6 Terra

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Frequently Asked Questions

What is GPT-5.6 Terra?

Who created GPT-5.6 Terra?

How much does GPT-5.6 Terra cost?

What types of input does GPT-5.6 Terra accept?

What is GPT-5.6 Terra's context window?

How can I use GPT-5.6 Terra on RyddleAI?

Try GPT-5.6 Terra In Related Workflows

Model pages work best when they connect to real tasks. Use these bots and utilities to test GPT-5.6 Terra against coding, research, and model-selection workflows.

Use GPT-5.6 Terra on RyddleAI

Access GPT-5.6 Terra with a RyddleAI subscription.

Try GPT-5.6 Terra View Pricing Compare Models

Compare GPT-5.6 Terra With Alternatives

Use these nearby models to test whether GPT-5.6 Terra is the right choice for your prompt, budget, and model family preference.

Alternative	Provider	Tier	Why compare	Page
GPT-5.6 Luna Pro	Openai	Premium	Another OpenAI model to compare within the same provider family	View model
GPT-5.6 Luna	Openai	Premium	Another OpenAI model to compare within the same provider family	View model
Gemini 3.6 Flash	Google	Premium	Same tier alternative from another provider	View model
Gemini 3.5 Flash Lite	Google	Premium	Same tier alternative from another provider	View model

GPT-5.6 Luna Pro

Openai

GPT-5.6 Luna