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GPT-5.6 Terra Pro
openai·openai/gpt-5.6-terra-pro·GA·Closed·gpt-terra series·NEW
Frontier GPT model for professional reasoning, coding, and multimodal work
At a glance
Reference price$3.13 / $18.75 per 1M
Cache read $0.313 · Venice AI
Lowest paid$1.00 / $6.00
NanoGPT Gateway · 3.1× spread
Context1,000,000
⚠ Providers report 1,000,000–1,050,000; the table below is authoritative
Output limit128,000
Capabilities
✓ Reasoning✓ Tool use✓ Structured outputTemperature✓ Attachments
Modalities
TextImagePDF
Knowledge cutoff2026-02-16
Released / updated2026-07-09 / 2026-07-09
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 3 providers3 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| NanoGPT | Gateway | $1.00 | $6.00 | $0.10 | $1.25 | 1,050,000 ⚠ | 128,000 | |
| OpenRouter | Gateway | $2.00 tiered >272K: $4.00 | $12.00 | $0.20 | $2.50 | 1,050,000 ⚠ | 128,000 | |
| Venice AI openai-gpt-56-terra-pro | Gateway | $3.13 tiered >272K: $6.25 | $18.75 | $0.313 | $3.91 | 1,000,000 | 128,000 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1NanoGPT$392.00
2OpenRouter$784.00
3Venice AI$1,225.00
The cheapest paid channel is the only channel.
Benchmark
No upstream benchmark data for this model. For quality, see the Artificial Analysis intelligence score above.
Reasoning control
effort = noneeffort = loweffort = mediumeffort = higheffort = xhigheffort = max
Related models
GPT-5.6 Terrasame series$2.00 / $12.00GPT-5.6 Terra (Global)same series$2.20 / $13.20GPT-5.6 Terra (OpenAI)same series$2.00 / $12.00GLM-5.2cheaper alternative$1.40 / $4.40DeepSeek V4 Procheaper alternative$0.435 / $0.87DeepSeek V4 Flashcheaper alternative$0.14 / $0.28DeepSeek V4 Flash 0731cheaper alternative$0.479 / $1.44
Price historyone sample accumulated per data sync
Input listOutput listMin blended