LLM Pricing

← All Models

OpenAI: GPT-5.6 Terra

🇺🇸 OpenAI · GPT-5.6 Terra

Input Price $2.50 per million tokens NT$80.0
Output Price $15.00 per million tokens NT$480
Context Window 1.05M tokens Output limit: 128K
OpenRouter Route Price Please verify with official pricing pages
Use this model via OpenRouter →

Overview

OpenAI: GPT-5.6 Terra is a large language model API from OpenAI, part of its GPT-5.6 Terra model family. With $2.50 per million input tokens and $15.00 per million output tokens, it is a premium-tier model where output volume is the main cost to watch. Output tokens cost about 6× as much as input, so prompt-heavy workloads run noticeably cheaper than generation-heavy ones. An exceptionally large 1.05M-token context window (≈1,575 pages of text) means entire repositories or document collections can be processed without chunking. Beyond plain text it also accepts File, Image input, so it can be applied to multimodal tasks rather than text alone. On Artificial Analysis's Intelligence Index it scores 55 (A grade), a useful proxy for its general reasoning strength relative to the other models tracked here. All prices on this page reflect OpenRouter's routed rates and are re-synced automatically every day; confirm against the provider's official pricing before committing to production.

Dimension Unit Price (USD) Price (TWD) Effective From
Input per 1M tokens $2.50 NT$80.0
Output per 1M tokens $15.00 NT$480
Cached Input per 1M tokens $0.250 NT$8.0
Cache Write per 1M tokens $3.13 NT$100
Web Search per search $0.010 NT$0.32

Provider
OpenAI
Model Family
GPT-5.6 Terra
Version String
openai/gpt-5.6-terra
Status
Active
Modality
File, Image, Text
Context Window
1,050,000 tokens
Output Limit
128,000 tokens

Index Metrics

Cross-domain capability indexes evaluated by Artificial Analysis — Artificial Analysis

Agentic Index 47 A Measured: 2026-07-11
Coding Index 77 S Measured: 2026-07-11
Intelligence Index 55 A Measured: 2026-07-11

Benchmark Scores

Data source: Artificial Analysis

AA-LCR 74.0% B Measured: 2026-07-11
GPQA Diamond 92.5% S Measured: 2026-07-11
HLE 41.8% S Measured: 2026-07-11
IFBench 71.2% B Measured: 2026-07-11
MMMU Pro 80.7% A Measured: 2026-07-11
Non-Hallucination 14.8% Measured: 2026-07-11
Omniscience Accuracy 45.9% Measured: 2026-07-11
SciCode 53.9% A Measured: 2026-07-11
Tau2 86.3% Measured: 2026-07-11
TerminalBench 57.6% Measured: 2026-07-11

Performance Metrics

Real-world benchmarks, updated every 72 hours by Artificial Analysis — Artificial Analysis

First Token Latency 164.3s Measured: 2026-07-11
Output Speed 140 t/s Measured: 2026-07-11
Response Time 167.8s Measured: 2026-07-11

90-Day Price Trend

Input / Output price (USD per 1M tokens)

Past 90 days of records; every price change is shown here

Date Dimension Price (USD) Source
Web Search $0.010 OpenRouter
Cache Write $3.13 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cache Write $3.13 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cache Write $3.13 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter

Key Insights

Key data points from this page for quick reference and citation.

  • OpenAI: GPT-5.6 Terra Input price: $2.5/M tokens
  • OpenAI: GPT-5.6 Terra Output price: $15/M tokens
  • Context window: 1,050,000 tokens
  • Provider: OpenAI
  • Model family: GPT-5.6 Terra
  • Modalities: File, Image, Text
  • Data source: OpenRouter, updated daily