GPT-5.6 Terra
OpenAI · Proprietary · Released Jul 9, 2026 · openai/gpt-5.6-terra
1.05M contextVisionToolsReasoningStructured outputPrompt caching
Available from 7 providersUSD / MTOK · VERIFIED 12 HOURS AGO
EST. MONTHLY COSTclick a row for detail · click headers to sort
| PROVIDER | INPUT | OUTPUT | CACHE | CONTEXT | QUANT | TTFT | TPS | UPTIME |
|---|---|---|---|---|---|---|---|---|
 OpenAI1ST PARTY | $1.00 | $6.00 | $0.10 | 1.05M | — | 2s | 95 tok/s | 99.4% |
| OpenAI1ST PARTY | $2.00 | $12.00 | $0.20 | 1.05M | — | — | — | 99.4% |
 Azure | $2.00 | $12.00 | $0.20 | 1.05M | — | 6.5s | 31 tok/s | 92.5% |
 Amazon Bedrock | $2.20 | $13.20 | $0.22 | 1.05M | — | ✕ | ✕ | 100.0% |
| Azure | $2.20 | $13.20 | $0.22 | 1.05M | — | — | — | 100.0% |
| Azure | $2.20 | $13.20 | $0.22 | 1.05M | — | — | — | 86.8% |
| OpenAI1ST PARTY | $4.00 | $24.00 | $0.40 | 1.05M | — | — | — | 99.4% |
TTFT/TPS: median (P50) over trailing 72h · chat10k profile (~10K in / 200 out) · measured via OpenRouter routing · ✕ = probed, endpoint returned no measurable stream · methodology v1.1 · measured 43 hours ago
Pricing variants · USD / MTok in / out
STANDARD
$1.00 / $6.00
per MTok in / out
BATCH
$0.50 / $3.00
async batch
CACHE READ $0.10CACHE WRITE $1.25WEB SEARCH $0.01 / search
About
GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...
Specifications
Context window1,050,000
Max output128,000
Modalities infile, image, text
Modalities outtext
LicenseProprietary
ReleasedJul 9, 2026
Knowledge cutoff2026-02-16
TokenizerGPT
Related
Embed badge
[](https://modelindex.ai/models/openai/gpt-5.6-terra)Sources
OpenRouter API12 hours ago
AGGREGATORLiteLLM dataset12 hours ago
AGGREGATORModelIndex benchmarks43 hours ago
MEASUREDVerified 12 hours ago · list prices, not negotiated rates.