GPT 5.6 Terra

The gpt-5.6-terra model is an OpenAI variant built for production. Deploy gpt-5.6-terra to prioritize grounding and high-throughput reliability in large-scale RAG systems with 100% JSON schema adherence and massive context support.

Modalities

Context

API Usage Examples

curl --request POST "https://gptproto.com/v1/chat/completions" \
  --header "Authorization: Bearer $GPTPROTO_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
    "model": "gpt-5.6-terra",
    "messages": [
      {
        "role": "user",
        "content": "Hello"
      }
    ]
  }'

GPT 5.6 Terra pricing

Estimate a request with real work scenarios. GPTProto token pricing is 20% below official rates.

Cost calculator

Multi-turn agent with cached context.

Input tokens$1.6 / 1M$0.0024

Output tokens$9.6 / 1M$0.00768

Cache write tokens$2 / 1M$0.006

Cache read tokens$0.16 / 1M$0.004

Cost per request$0.02008

Top up

GPTProto vs official pricing.

Requests

You pay

20% off

$100

You receive$100.00

Save$25.00 (20%)vs OpenAI official

Related Models

All Models

Model					Input → Output
GPT 5.6 TerraCurrent		1.05M	$1.60 / $9.60 per 1M	$2.00 / $0.16 per 1M	Input: TextInput: ImageInput: Document Output: Text
GLM 5.3		1.05M	$1.26 / $3.96 per 1M	— / $0.23 per 1M	Input: TextInput: ImageInput: Document Output: Text
Gemini 3.7 Flash		1.05M	$0.45 / $2.25 per 1M	— / $0.04 per 1M	Input: TextInput: ImageInput: Document Output: Text
Grok 4.6		500K	$1.20 / $3.60 per 1M	— / $0.30 per 1M	Input: TextInput: Image Output: Text
Qwen3.8 Max		1M	$1.80 / $5.40 per 1M	$2.25 / $0.23 per 1M	Input: TextInput: ImageInput: VideoInput: Document Output: Text
Claude Opus 5		1M	$4.00 / $20.00 per 1M	$5.00 / $0.40 per 1M	Input: TextInput: ImageInput: Document Output: Text
Gemini 3.6 Flash		1.05M	$0.45 / $2.25 per 1M	— / $0.04 per 1M	Input: TextInput: ImageInput: Document Output: Text
Gemini 3.5 Flash Lite		1.05M	$0.18 / $1.50 per 1M	$0.02 / $0.02 per 1M	Input: TextInput: ImageInput: Document Output: Text
Kimi K3		1.05M	$2.70 / $13.50 per 1M	$0.27 / $0.27 per 1M	Input: TextInput: ImageInput: Document Output: Text
GPT 5.6 Luna		1.05M	$0.16 / $0.96 per 1M	$0.20 / $0.02 per 1M	Input: TextInput: ImageInput: Document Output: Text
GPT 5.6 Sol		1.05M	$4.00 / $24.00 per 1M	$5.00 / $0.40 per 1M	Input: TextInput: ImageInput: Document Output: Text
Grok 4.5		500K	$1.20 / $3.60 per 1M	$0.30 / $0.30 per 1M	Input: TextInput: Image Output: Text
Claude Sonnet 5		1M	$1.60 / $8.00 per 1M	$2.00 / $0.16 per 1M	Input: TextInput: Document Output: Text
MiniMax M3		1.05M	$0.48 / $0.96 per 1M	$0.10 / $0.10 per 1M	Input: TextInput: ImageInput: Document Output: Text
GLM 5.2		1.05M	$1.26 / $3.96 per 1M	$0.23 / $0.23 per 1M	Input: TextInput: ImageInput: Document Output: Text
GPT 5.1 Chat Latest		—	$1.00 / $8.00 per 1M	$0.10 / $0.10 per 1M	Input: TextInput: ImageInput: Document Output: Text
Claude Fable 5		1M	$8.00 / $40.00 per 1M	$10.00 / $0.80 per 1M	Input: TextInput: Document Output: Text
Qwen3.7 Max		1M	$0.36 / $1.44 per 1M	$0.07 / $0.07 per 1M	Input: TextInput: Document Output: Text
DeepSeek v4 Flash	—	1.05M	$0.44 / $1.32 per 1M	— / $0.01 per 1M	Input: Text Output: Text
DeepSeek v4 Pro	—	1.05M	$1.32 / $3.96 per 1M	— / $0.04 per 1M	Input: Text Output: Text
Grok 4.3		1M	$0.75 / $1.50 per 1M	$0.12 / $0.12 per 1M	Input: TextInput: Image Output: Text
GPT 5.4 Pro		1.05M	$24.00 / $144.00 per 1M	—	Input: TextInput: ImageInput: Document Output: Text
GPT 5.5 Pro		1.05M	$24.00 / $144.00 per 1M	—	Input: TextInput: ImageInput: Document Output: Text
GPT 5.5		1.05M	$4.00 / $24.00 per 1M	$0.40 / $0.40 per 1M	Input: TextInput: ImageInput: Document Output: Text
Kimi K2.6		262K	$0.85 / $3.60 per 1M	$0.14 / $0.14 per 1M	Input: TextInput: Document Output: Text
GLM 5.1		205K	$1.26 / $3.96 per 1M	$0.23 / $0.23 per 1M	Input: TextInput: Document Output: Text
DeepSeek v3.2		164K	$0.17 / $0.25 per 1M	$0.02 / $0.02 per 1M	Input: Text Output: Text
MiniMax M2.5		205K	$0.24 / $0.96 per 1M	$0.30 / $0.02 per 1M	Input: TextInput: Document Output: Text
Kimi K2.5		262K	$0.54 / $2.70 per 1M	$0.09 / $0.09 per 1M	Input: TextInput: Document Output: Text
Qwen Turbo		—	$0.04 / $0.18 per 1M	$0.009 / $0.009 per 1M	Input: Text Output: Text
Doubao Seed 1.6 Thinking (Build 250715)		262K	$0.10 / $0.97 per 1M	—	Input: TextInput: Image Output: Text
Doubao Seed 1.6 Thinking (Build 250615)		262K	$0.10 / $0.97 per 1M	—	Input: TextInput: Image Output: Text
Doubao Seed 1.6 Flash (Build 250615)		262K	$0.02 / $0.18 per 1M	—	Input: TextInput: Image Output: Text

Scale Your Enterprise with gpt-5.6-terra

Leverage specialized features of gpt-5.6-terra for robust production AI workflows.

Grounded RAG Precision

Optimized for reliability, gpt-5.6-terra prioritizes your context to eliminate hallucinations in complex retrieval systems.

200k Context Window

Process massive documents with gpt-5.6-terra, maintaining 99%+ accuracy in needle-in-a-haystack data retrieval tasks.

High-Throughput Scaling

Designed for production, gpt-5.6-terra delivers low TTFT and stable performance during massive-scale data processing.

Strict JSON Adherence

Ensure 100% valid JSON outputs with gpt-5.6-terra, perfect for automated ETL workflows and complex tool calling.

gpt-5.6-terra FAQ: Grounding & Production Usage

Get answers about gpt-5.6-terra performance, RAG-tuning, and deployment on GPTProto.com.

What makes gpt-5.6-terra better for RAG?

The gpt-5.6-terra model uses specific Terra-tuning to prioritize your prompt's context over its internal training data. This reduces hallucinations by roughly 30% compared to standard models, ensuring the AI sticks to the facts you provide.

Does gpt-5.6-terra support JSON mode?

Yes, gpt-5.6-terra is optimized for strict JSON adherence. It uses a specialized decoding strategy that ensures 100% compliance with your provided schemas, which is essential for building reliable API orchestrations and automated data pipelines.

How many tokens can gpt-5.6-terra handle?

It features a generous 200,000-token context window. This allows gpt-5.6-terra to summarize long-form documents or index large codebases without losing track of details, supported by a high retrieval score of over 99% across the full window.

Is gpt-5.6-terra faster than GPT-4o?

While gpt-5.6-terra is a specialized variant, it is engineered for high-concurrency throughput. It offers low time-to-first-token (TTFT) even during heavy loads, making it more stable for real-time, user-facing production environments.

Can I use web search with gpt-5.6-terra?

Yes. Through the Responses API on GPTProto.com, gpt-5.6-terra supports non-reasoning web search for quick lookups and agentic search for complex research, providing sourced citations and the ability to filter results by specific domains.

Are there discounts for using gpt-5.6-terra?

GPTProto.com offers competitive pricing for gpt-5.6-terra, including a 50% discount on cached input prefixes for prompts over 1,024 tokens. You also benefit from unified billing and automated fallback routing to ensure maximum uptime.