GPT-5.6 Terra Pro API Pricing
OpenAI · Mid-tier · Proprietary · released 2026-07. Prices in USD per 1 million tokens. Data snapshot: 2026-09-28.
GPT-5.6 Terra Pro has held the same list price since 2026-08-17 and is the 99th cheapest of 108 Mid-tier models. None of its 2 hosts undercuts the price quoted here. No Arena score is published for it, so it carries no Efficiency score and cannot hold the FinOps Friendly badge.
- Input: $2.00 per 1M tokens
- Output: $12.00 per 1M tokens
- Batch API (input/output): $1.00 / $6.00
- Prompt-cache read: $0.20
- Context window: 1M
- Available on: Direct API, OpenRouter (curated by hand, verify with the provider)
GPT-5.6 Terra Pro market position
On blended price ($9.00 per 1M tokens at 30% input, 70% output) it is cheaper than 6% of Mid-tier models: 99th cheapest of 108, tied with 3 others. Across every category it is cheaper than 13% of priced text models in the catalogue: 241st cheapest of 281, tied with 3 others.
GPT-5.6 Terra Pro licence, size and capabilities
GPT-5.6 Terra Pro is recorded here as proprietary: access is through an API, priced by the token. Its parameter count is not published. Listed capabilities: Text, Vision, Reasoning, Code, Agents. Filling its 1M context window once costs $2.00 in input tokens at list price.
Monthly cost at 100K requests, by business use case
From the after-discounts figure (prompt caching on the cached input share, batch API for async workloads, only where the provider publishes those rates), which assumes you implement both, to the list price. One figure means no discount is published.
| Use case | Tokens (in/out) | Monthly (after discounts – list) |
|---|---|---|
| Support Ticket | 1,500 / 500 | $738 – $900 |
| Knowledge Q&A | 2,000 / 800 | $1.1K – $1.4K |
| Meeting Summary | 10,000 / 1,200 | $1.6K – $3.4K |
| Marketing Content | 2,500 / 1,800 | $2.6K – $2.7K |
| Coding Task | 3,000 / 2,000 | $2.7K – $3.0K |
| Invoice Processing | 1,500 / 600 | $474 – $1.0K |
| Call Summary | 2,000 / 700 | $604 – $1.2K |
| Agent Workflow | 6,000 / 3,000 | $4.0K – $4.8K |
GPT-5.6 Terra Pro pricing by host
A host is a company that runs the model and sells it by the token — the lab that made it, a cloud platform like Amazon Bedrock, Azure or Vertex, or an independent provider. One model, several sellers, and often several prices. This model is sold by 2 different hosts. The price quoted above is the one we publish so that models stay comparable; it is not necessarily the cheapest way to buy this model. List prices as published on 2026-09-28 via OpenRouter — negotiated rates, committed-use discounts and provisioned capacity are not shown.
The price we publish is already the cheapest of the 2 hosts: OpenAI at $2.00 input / $12.00 output per 1M tokens. All of them charge within 10% of one another.
| Host | Input $/1M | Output $/1M |
|---|---|---|
| OpenAI (the price shown above) | $2.00 | $12.00 |
| Azure (the price shown above) | $2.00 | $12.00 |
GPT-5.6 Terra Pro price history
GPT-5.6 Terra Pro has been in our daily price archive since 2026-08-15. Its price series starts on 2026-08-17 at $2.00 input / $12.00 output per 1M tokens, because the earlier snapshots carried a data error that was corrected afterwards. No list price change since 2026-08-17. Last checked against the 2026-09-28 snapshot.
Alternatives to GPT-5.6 Terra Pro
- Next cheaper Mid-tier model: Command A (Cohere) at $7.75 blended, 14% less.
- Next more expensive: Nova Premier 1.0 (Amazon) at $9.50 blended, 6% more.
Common questions about GPT-5.6 Terra Pro pricing
- How much does GPT-5.6 Terra Pro cost?
- GPT-5.6 Terra Pro costs $2.00 per million input tokens and $12.00 per million output tokens on the API.
- Does GPT-5.6 Terra Pro offer batch or cached pricing?
- Yes. Batch API pricing is $1.00/M input and $6.00/M output. Prompt-cache reads cost $0.20/M.
- What would GPT-5.6 Terra Pro cost per month?
- For a support-ticket workload (1,500 input + 500 output tokens per request) at 100K requests/month, GPT-5.6 Terra Pro costs about $900 at list prices.
- Has the price of GPT-5.6 Terra Pro changed?
- GPT-5.6 Terra Pro has been in our daily price archive since 2026-08-15. Its price series starts on 2026-08-17 at $2.00 input / $12.00 output per 1M tokens, because the earlier snapshots carried a data error that was corrected afterwards. No list price change since 2026-08-17. Last checked against the 2026-09-28 snapshot.
These are list prices: real cost also depends on caching, batching, negotiated discounts, marketplace agreements, and existing contracts. Get a FinOps review from OptimNow or compare all models.
Build the business case for GPT-5.6 Terra Pro in the AI ROI Calculator: add your business value on top of these costs to get ROI, break-even and payback.
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