OpenAIPaidOperational
GPT 5.6 Terra
API model name: gpt-5.6-terra
GPT 5.6 Terra is OpenAI's chat model, served on the Api.Airforce unified API. Capabilities include Reasoning. It is priced at $2.00 per million input tokens and $11.50 per million output tokens. Access it through the OpenAI-compatible API with one key, alongside 100+ other models on Api.Airforce.
Pricing
Api.Airforce price vs. the provider's official rate.
Specifications
- Provider
- OpenAI
- Type
- chat model
Capabilities
Reasoning
Benchmarks
Independent evaluations and measured speed from Artificial Analysis.
Measured atSame model, different reasoning effort.
Intelligence Index
56.6/100
Coding Index
76.7/100
GPQA Diamond93%
Humanity's Last Exam43%
SciCode54%
τ²-bench86%
τ-bench Banking40%
Terminal-Bench Hard58%
Output speed117.9 tok/s
GPT-5.6 Terra (max) · 34.6–56.6
Source: Benchmark data by Artificial Analysis (artificialanalysis.ai)
What is GPT 5.6 Terra used for?
- Chatbots & assistants — conversational AI, drafting, summarizing and Q&A.
- Complex reasoning — math, coding and step-by-step problem solving.
GPT 5.6 Terra vs. similar models
| Model | Intelligence | Context | Input / 1M | Output / 1M |
|---|---|---|---|---|
| GPT 5.6 Terra | 56.6 | — | $2.00 | $11.50 |
| Babbage 002 | — | — | $0.34 | $0.34 |
| Chatgpt 4o Latest | — | — | $2.19 | $7.50 |
| Codex Auto Review | — | — | $0.33 | $1.99 |
Prices are Api.Airforce pay-as-you-go rates per 1M tokens. Context is the maximum input length.
Related models
Babbage 002OpenAI · $0.34 / 1MChatgpt 4o LatestOpenAI · $2.19 / 1MChatgpt Image LatestOpenAI · $5.00 / 1MCodex Auto ReviewOpenAI · $0.33 / 1MDALL·E 2OpenAI · $36.60 / 1MGPT 3.5OpenAI · $1.11 / 1MGPT 3.5 TurboOpenAI · $0.15 / 1MGPT 3.5 TurboOpenAI · $0.59 / 1MGPT 3.5 TurboOpenAI · $0.52 / 1MGPT 3.5 Turbo 16kOpenAI · $3.00 / 1MGPT 3.5 Turbo InstructOpenAI · $0.83 / 1MGPT 4OpenAI · $9.93 / 1M
GPT 5.6 Terra — frequently asked questions
- How much does GPT 5.6 Terra cost?
- GPT 5.6 Terra is billed pay-as-you-go at $2.00 per 1M input tokens and $11.50 per 1M output tokens. There is no subscription — you only pay for what you use.
- What can GPT 5.6 Terra do?
- GPT 5.6 Terra supports Reasoning.
- Is GPT 5.6 Terra free to use?
- GPT 5.6 Terra is a paid, pay-as-you-go model — no subscription, you are only charged for usage.
- How do I use GPT 5.6 Terra via the API?
- GPT 5.6 Terra is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID gpt-5.6-terra with your Api.Airforce API key.
- Who makes GPT 5.6 Terra?
- GPT 5.6 Terra is OpenAI's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.
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Use GPT 5.6 Terra via the API
OpenAI-compatible — point any OpenAI SDK at https://api.airforce/v1 and pass gpt-5.6-terra as the model.
cURL
curl https://api.airforce/v1/chat/completions \
-H "Authorization: Bearer $AIRFORCE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.6-terra",
"messages": [{ "role": "user", "content": "Hello!" }]
}'Python
from openai import OpenAI
client = OpenAI(base_url="https://api.airforce/v1", api_key="$AIRFORCE_API_KEY")
r = client.chat.completions.create(
model="gpt-5.6-terra",
messages=[{"role": "user", "content": "Hello!"}],
)
print(r.choices[0].message.content)JavaScript
import OpenAI from "openai";
const client = new OpenAI({ baseURL: "https://api.airforce/v1", apiKey: process.env.AIRFORCE_API_KEY });
const r = await client.chat.completions.create({
model: "gpt-5.6-terra",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(r.choices[0].message.content);