OpenAI model pricing

GPT-5.6 Terra API Pricing

Verified standard token pricing for GPT-5.6 Terra, with official-source evidence and computed workload costs.

Model ID: gpt-5.6-terra · Verified Sep 29, 2026

Quick answer

As of Sep 29, 2026, GPT-5.6 Terra costs $2.00 per 1M input and $12.00 per 1M output tokens, $0.20 cached input. At standard non-cached rates, 10,000 monthly requests using 800 input and 300 output tokens each cost about $52.00, before retries, tools, storage, or provider-specific discounts.

ModelInput $/1MCached input $/1MOutput $/1MSourceLast verified
GPT-5.6 Terra$2.00$0.20$12.00Official sourceSep 29, 2026

Prices from official provider pages, verified on the date shown.

Official source detail

Full pricing details

Standard prices are shown per 1M tokens. Provider-specific tiers, components, Batch rates, and time schedules remain separate below.

Long-context pricing tiers

TierInputCached inputOutput
Long context>272k prompt tokens$4.00$0.40$18.00
Short context≤272k prompt tokens$2.00$0.20$12.00

Published pricing components

Mode and contextComponentModalityPrice
batch · longprice:openai/gpt-5.6-terra:batch:long:currentcache writetext$2.5 / per 1m tokens
batch · longprice:openai/gpt-5.6-terra:batch:long:currentcached inputtext$0.2 / per 1m tokens
batch · longprice:openai/gpt-5.6-terra:batch:long:currentinputtext$2 / per 1m tokens
batch · longprice:openai/gpt-5.6-terra:batch:long:currentoutputtext$9 / per 1m tokens
batch · shortprice:openai/gpt-5.6-terra:batch:short:currentcache writetext$1.25 / per 1m tokens
batch · shortprice:openai/gpt-5.6-terra:batch:short:currentcached inputtext$0.1 / per 1m tokens
batch · shortprice:openai/gpt-5.6-terra:batch:short:currentinputtext$1 / per 1m tokens
batch · shortprice:openai/gpt-5.6-terra:batch:short:currentoutputtext$6 / per 1m tokens
fast · longprice:openai/gpt-5.6-terra:fast:long:currentcache writetext$10 / per 1m tokens
fast · longprice:openai/gpt-5.6-terra:fast:long:currentcached inputtext$0.8 / per 1m tokens
fast · longprice:openai/gpt-5.6-terra:fast:long:currentinputtext$8 / per 1m tokens
fast · longprice:openai/gpt-5.6-terra:fast:long:currentoutputtext$36 / per 1m tokens
fast · shortprice:openai/gpt-5.6-terra:fast:short:currentcache writetext$5 / per 1m tokens
fast · shortprice:openai/gpt-5.6-terra:fast:short:currentcached inputtext$0.4 / per 1m tokens
fast · shortprice:openai/gpt-5.6-terra:fast:short:currentinputtext$4 / per 1m tokens
fast · shortprice:openai/gpt-5.6-terra:fast:short:currentoutputtext$24 / per 1m tokens
flex · longprice:openai/gpt-5.6-terra:flex:long:currentcache writetext$2.5 / per 1m tokens
flex · longprice:openai/gpt-5.6-terra:flex:long:currentcached inputtext$0.2 / per 1m tokens
flex · longprice:openai/gpt-5.6-terra:flex:long:currentinputtext$2 / per 1m tokens
flex · longprice:openai/gpt-5.6-terra:flex:long:currentoutputtext$9 / per 1m tokens
flex · shortprice:openai/gpt-5.6-terra:flex:short:currentcache writetext$1.25 / per 1m tokens
flex · shortprice:openai/gpt-5.6-terra:flex:short:currentcached inputtext$0.1 / per 1m tokens
flex · shortprice:openai/gpt-5.6-terra:flex:short:currentinputtext$1 / per 1m tokens
flex · shortprice:openai/gpt-5.6-terra:flex:short:currentoutputtext$6 / per 1m tokens
standard · longprice:openai/gpt-5.6-terra:standard:long:currentcache writetext$5 / per 1m tokens
standard · longprice:openai/gpt-5.6-terra:standard:long:currentcached inputtext$0.4 / per 1m tokens
standard · longprice:openai/gpt-5.6-terra:standard:long:currentinputtext$4 / per 1m tokens
standard · longprice:openai/gpt-5.6-terra:standard:long:currentoutputtext$18 / per 1m tokens
standard · shortprice:openai/gpt-5.6-terra:standard:short:currentcache writetext$2.5 / per 1m tokens
standard · shortprice:openai/gpt-5.6-terra:standard:short:currentcached inputtext$0.2 / per 1m tokens
standard · shortprice:openai/gpt-5.6-terra:standard:short:currentinputtext$2 / per 1m tokens
standard · shortprice:openai/gpt-5.6-terra:standard:short:currentoutputtext$12 / per 1m tokens

Batch API: input $1.00 and output $6.00 per 1M tokens.

Official pricing notes: Long-context standard pricing is higher: $4 input, $0.40 cached input, $5 cache writes, $18 output per 1M tokens. Batch and Flex are lower; Priority is higher.

View OpenAI's official pricing source ↗

Computed examples

What it costs for real workloads

WorkloadMonthly volumeInput tokensOutput tokensEstimated cost
Side project1,000 requests/month800,000300,000$5.20
Side project10,000 requests/month8,000,0003,000,000$52.00
Side project100,000 requests/month80,000,00030,000,000$520.00
Customer support chatbot10,000 conversations/month121,650,00010,800,000$372.90
Agent task1,000 tasks/month12,000,0003,200,000$62.40
Side project with Batch API10,000 requests/month8,000,0003,000,000$26.00

Assumptions

  • Side project: 800 input and 300 output tokens per request at 1,000, 10,000, and 100,000 requests per month.
  • Customer support chatbot: 6 replies per conversation, 600 system tokens, 90 user-message tokens, 1,000 retrieved-context tokens, 180 output tokens per reply, and 50% history carry, for 10,000 conversations.
  • Agent task: 8 model calls per task, 1,500 input and 400 output tokens per call, for 1,000 tasks.
  • Standard rows use non-cached, non-batch prices. A Batch row appears only when both published Batch token prices exist.

Availability evidence

Lifecycle

Status
active
Release date
Jul 9, 2026
Context window
Short / long
Pricing basis
V2 projection default price

Nearby blended prices

Compare with

Alternatives are nearest by a 3:1 input-to-output blended token price, with same-provider coverage when available.

ModelInput / 1MOutput / 1MSide project, 10k requests
GPT-6 Sol$2.00$10.00$46.00
Command R+ 08-2024$2.50$10.00$50.00
Claude Sonnet 5$2.00$10.00$46.00

Compare switching costs · Open the full pricing comparison

Next steps

Common questions

Frequently asked questions

How much does GPT-5.6 Terra cost per million tokens?

GPT-5.6 Terra costs $2.00 per 1M input tokens and $12.00 per 1M output tokens.

Does GPT-5.6 Terra have cached input pricing?

Yes. The published cached-input price is $0.20 per 1M tokens.

How much does GPT-5.6 Terra cost for 10,000 requests a month?

Using 800 input and 300 output tokens per request at standard non-cached rates, 10,000 monthly requests cost about $52.00.

Where does this GPT-5.6 Terra price come from?

The prices come from OpenAI's official pricing source and were verified on Sep 29, 2026. See the pricing dataset methodology.