GPT-5.6 Terra Pro
GPT-5.6 Terra Pro is the same underlying model as [GPT-5.6 Terra](https://openrouter.ai/openai/gpt-5.6-terra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more...
Input / 1M
$2.00
Output / 1M
$12.00
Context
1.0M
AA Intelligence
—
Closed weights — available only as a hosted API
file + image + text → text
Knowledge cutoff Feb 2026
View on OpenRouter ↗
Pricing
via OpenRouter · USD per 1M tokens · synced 2026-10-24$2.00
input / 1M
$12.00
output / 1M
$0.20
cached input / 1M
$14.00
1M in + 1M out
:batch variant
$1.00 in · $6.00 out
Price tiers
- Above 272K prompt tokens: input $4.00/M, output $18.00/M (2× base)
- Context window
- 1,050,000 tokens
- Max output
- 128,000 tokens
- Providers
- 2
- Cheapest provider
- OpenAI · $1.00 / $6.00
- Best throughput
- —
- AA Intelligence / Coding / Agentic
- — / — / —
✓ Tool calling
✓ Reasoning
✓ Structured outputs
✓ Image input
✓ File input
✗ Audio input
✓ Prompt caching
Price history
tracking started — chart appears after 7 days of snapshots (6 recorded)Current: $2.00 input · $12.00 output per 1M tokens
Providers
2 providers · per 1M tokens · last 30 min metrics| Provider | Quant | Context | Input | Output | Uptime | Tok/s |
|---|---|---|---|---|---|---|
| OpenAI | unknown | 1.0M | $1.00 | $6.00 | — | — |
| Azure | unknown | 1.0M | $2.00 | $12.00 | — | — |
| OpenAI | unknown | 1.0M | $2.00 | $12.00 | — | — |
| Azure | unknown | 1.0M | $2.20 | $13.20 | — | — |
| OpenAI | unknown | 1.0M | $4.00 | $24.00 | — | — |
Provider data from OpenRouter's endpoint listing, refreshed daily.
Specifications
- Organisation
- openai
- Released on OpenRouter
- 2026-07-09
- Context window
- 1,050,000 tokens
- Max output
- 128,000 tokens
- Input
- file, image, text
- Output
- text
- Knowledge cutoff
- February 2026
- Tokenizer
- GPT
- Moderated by provider
- Yes
- OpenRouter id
- openai/gpt-5.6-terra-pro
Compare with
Popular comparisons
Prices, context and providers from the public OpenRouter API, snapshotted daily; benchmark indices from Artificial Analysis. See /methodology.