How much does GPT-5.6 Terra cost per token?

GPT-5.6 Terra costs $2.00 per million input tokens and $12.00 per million output tokens through the OpenAI API. That is $0.000002 per input token and $0.000012 per output token.

How much does a typical GPT-5.6 Terra request cost?

A request with 1,000 input tokens and 500 output tokens costs about $0.008 on GPT-5.6 Terra, or $8.00 per thousand requests.

What is the context window of GPT-5.6 Terra?

GPT-5.6 Terra accepts up to 1,050,000 tokens (about 1.05M) of context per request, which covers the prompt, any documents you include and the conversation history.

Does GPT-5.6 Terra have batch pricing?

Yes. OpenAI's batch API processes requests asynchronously (typically within 24 hours) at 50% off, bringing GPT-5.6 Terra to $1.00 input and $6.00 output per million tokens.

How accurate is the token count for GPT-5.6 Terra?

Exact. Tokenova counts GPT-5.6 Terra tokens in your browser with the o200k_base tokenizer that OpenAI's current models use.

OpenAI · Mid-tier model

GPT-5.6 Terra pricing & cost calculator

Prices last updated: September 25, 2026

Input

$2.00

per 1M tokens

Output

$12.00

per 1M tokens

Context window

1.05M

1,050,000 tokens

Inputs above 272K tokens are billed at a higher long-context rate ($4 / $18).

About GPT-5.6 Terra pricing

GPT-5.6 Terra is OpenAI’s mid-tier model that balances capability and price for everyday production workloads. It is billed per token: $2.00 for every million tokens you send and $12.00 for every million tokens it generates, so output costs 6× as much as input.

For a typical request of 1,000 input and 500 output tokens, GPT-5.6 Terra costs about $0.008 — the 8th-cheapest of the 14 models we track. One million input tokens is roughly 2,000 pages of English prose.

With OpenAI’s batch API (50% off, results within 24 hours) the rate drops to $1.00 input and $6.00 output per million tokens.

OpenAI’s official pricing page is the source of truth; see our guide to how AI pricing works for caching and long-context rules.

GPT-5.6 Terra cost calculator

Input tokens

Output tokens

Requests / day

Per request: $0.008
Per day: $8.00
Per month (30 days): $240.00

Count tokens from your own text in the full calculator →

What GPT-5.6 Terra costs for common tasks

Standard pricing, no caching or batch discount. Token sizes are typical estimates — see token cost by use case.
Task	Input tokens	Output tokens	Per request	Per 1,000 requests
Short chat reply	500	300	$0.0046	$4.60
Support chatbot turn with history	3,000	400	$0.0108	$10.80
RAG answer (retrieved context)	6,000	600	$0.0192	$19.20
Summarize a 20-page document	12,000	1,000	$0.036	$36.00
Long-document analysis	100,000	2,000	$0.224	$224.00

Compare GPT-5.6 Terra with…

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GPT-5.6 Terra pricing FAQ

How much does GPT-5.6 Terra cost per token?: GPT-5.6 Terra costs $2.00 per million input tokens and $12.00 per million output tokens through the OpenAI API. That is $0.000002 per input token and $0.000012 per output token.
How much does a typical GPT-5.6 Terra request cost?: A request with 1,000 input tokens and 500 output tokens costs about $0.008 on GPT-5.6 Terra, or $8.00 per thousand requests.
What is the context window of GPT-5.6 Terra?: GPT-5.6 Terra accepts up to 1,050,000 tokens (about 1.05M) of context per request, which covers the prompt, any documents you include and the conversation history.
Does GPT-5.6 Terra have batch pricing?: Yes. OpenAI's batch API processes requests asynchronously (typically within 24 hours) at 50% off, bringing GPT-5.6 Terra to $1.00 input and $6.00 output per million tokens.
How accurate is the token count for GPT-5.6 Terra?: Exact. Tokenova counts GPT-5.6 Terra tokens in your browser with the o200k_base tokenizer that OpenAI's current models use.