OpenAI GPT 5.6 Terra: AI Large Language Models
Generate text with OpenAI's GPT 5.6 Terra. Balanced multimodal reasoning for business and analytical tasks. No subscription.
Generate text with OpenAI's GPT 5.6 Terra. Balanced multimodal reasoning for business and analytical tasks. No subscription.
About this model
GPT 5.6 Terra is the balanced member of OpenAI's GPT 5.6 multimodal reasoning family, built for general business, analytical, and writing tasks. It accepts mixed text and image inputs, supports a system prompt to steer behavior, and can call an integrated web search tool for real-time information. Reasoning depth is adjustable via the reasoning_effort parameter, so you can dial in more thorough logic when a task needs it. Terra sits between the speed-optimized Luna and the reasoning flagship Sol, making it the default choice for everyday business intelligence work.
Cost analysis
| Provider | Cost | Notes |
|---|---|---|
| muapiapp | $5.00/M input, $30.00/M output | Token-based billing. Minimum $0.0004 per call. |
| Fal.ai | Not available | No dedicated GPT 5.6 Terra endpoint at this time. |
| Replicate | Not available | No dedicated GPT 5.6 Terra endpoint at this time. |
Token-based billing. Minimum $0.0004 per call.
No dedicated GPT 5.6 Terra endpoint at this time.
No dedicated GPT 5.6 Terra endpoint at this time.
** Competitor pricing is estimated based on similar model architectures and usage tiers.
Configuration schema
| Parameter | Type | Description | Default |
|---|---|---|---|
| Prompt | string | The user message or instruction. | Draft a business email proposing a new partnership. |
| Image URL | string | Optional image URL for multimodal requests. | undefined |
| System Prompt | string | Optional system-level instruction to guide model behavior. | You are an expert business analyst. |
| Web Search Switch | boolean | Enable web search tool for real-time information retrieval. | false |
| Reasoning Effort | Enum (4 options) | Level of reasoning depth: low, medium, high, or xhigh. | low |
The user message or instruction.
Draft a business email proposing a new partnership.Optional image URL for multimodal requests.
undefinedOptional system-level instruction to guide model behavior.
You are an expert business analyst.Enable web search tool for real-time information retrieval.
falseLevel of reasoning depth: low, medium, high, or xhigh.
lowDeveloper documentation
POST /api/v1/gpt-5-6-terra — returns request_id, poll for result via /api/v1/predictions/{id}/result.
POST /api/v1/gpt-5-6-terra/stream — returns a live Server-Sent Events stream (Content-Type: text/event-stream). Each chunk has the format data: {"choices":[{"delta":{"content":"text"}}]}, ending with data: [DONE].
curl -X POST "https://api.muapi.ai/api/v1/gpt-5-6-terra" \
-H "Authorization: Bearer $YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"prompt": "Draft a business email proposing a new partnership.",
"reasoning_effort": "medium"
}'
Frequently asked
Terra is balanced for general business, analytical, and writing tasks — it's the default choice when Luna is too lightweight and Sol is more reasoning power than you need.
Pricing is token-based at $5.00 per million input tokens and $30.00 per million output tokens, with a minimum charge of $0.0004 per call.
Yes, Terra supports mixed text and image (image_url) inputs in a single message.
You can control the depth of reasoning by passing a reasoning_effort value of 'low', 'medium', 'high', or 'xhigh'. Higher levels provide more thorough logic but increase latency.
Use the streaming endpoint (/gpt-5-6-terra/stream) for interactive chat interfaces where the user expects real-time feedback. Use the async endpoint (/gpt-5-6-terra) for background tasks, workflows, and automated scripts.
Use Luna for high-volume, low-latency classification tasks where cost matters most. Use Sol for complex math, programming, and scientific reasoning that needs the flagship model's depth.