GPT 5.6 Terra Pro

OpenAI · model · context window 1,050,000 tokens.

Pricing (per 1M tokens)

Input$2.00

Output$12.00

Cache read$0.2000

Cache write$2.50

Specifications

Context window1,050,000 tokens

Max output128,000 tokens

Modalitiestext

VisionNo

Tool useYes

ReasoningNo

Prompt cachingNo

Price history

All price changes →

GPT 5.6 Terra Pro has had 4 tracked price changes since we began monitoring. Most recent: input $1.00 → $2.00 on 29 August 2026. All-time low input rate: $1.00/1M.

Input price over time ($/1M tokens)

Low $1.00High $2.00

Recorded from our daily pricing checks. See the full LLM price tracker.

Estimate cost with GPT 5.6 Terra Pro

GPT 5.6 Terra Pro is pre-selected below. Enter your token counts and volume to see the cost per request, per day and per month — then switch models to compare.

Model

Input tokens(tokens)

Output tokens(tokens)

Results update automatically as you type.

Result

$0.00800 per request

~$240.00/month at 1,000 requests/day

Input cost: $0.00200
Output cost: $0.00600
Per request: $0.00800
Per day: $8.00
Per month: $240.00

Chatbot Cost Calculator Compare all models

Source: community-hosted (cheapest of 4 providers, nano-gpt via models.dev). Prices are re-checked daily against the provider’s official pricing; this rate was last changed on 11 October 2026. A recent date here just means the price is still current, not that it moved.