OpenAI
GPT-6.1 Terra
OpenAI's fast, efficient GPT-6.1 model for visual reasoning, precise computer use, and clear, natural writing
Context Length1,050,000 tokens
Max Output128K tokens
Max Input922K tokens
Pricing & Specs
๐ฐ Pricing
Input$1 / M tokens
Output$5 / M tokens
Cache Write$1.25 / M tokens
Cache Hit$0.05 / M tokens
โ๏ธ Specs
Context Length1,050,000 tokens
Max Output128K tokens
Max Input922K tokens
MultimodalText and image input; text output
API CompatibilityResponses API; Chat Completions API
Reasoning Effortnone, low, medium (default), high, xhigh, max
Tool CallingUse Responses API for tool calling; Chat Completions does not support tool calls
Short-context Pricing (โค272K input)Input $1; cached input $0.05; cache write $1.25 (30-minute retention); output $5 / M tokens
Long-context Pricing (>272K input)Input $2; cached input $0.10; cache write $2.5 (30-minute retention); output $7.5 / M tokens for the full request
Fast Mode2x the applicable token rates, including long-context pricing
Release DateOctober 26, 2026
Knowledge CutoffJune 1, 2026
API Examples
Python
from openai import OpenAI
client = OpenAI(api_key="YOUR_API_KEY", base_url="https://api.zairouter.com/v1")
response = client.responses.create(
model="gpt-6.1-terra",
input="Explain this code and suggest improvements.",
)
print(response.output_text)
cURL
curl https://api.zairouter.com/v1/responses \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"gpt-6.1-terra","input":"Hello!"}'
Official references (verified October 27, 2026): GPT-6.1 Terra ยท OpenAI Pricing.