OpenAI · Frontier
gpt-5.6-terra
A closed model, reached through gm. The route is sealed in transit and in use; the model maker still receives the prompt under its API terms.
- Tool calling: yes
- Image input: yes
Released
Jul 2026Knowledge cutoff
Feb 2026Modalities
Text · Tool calling · Image inputBest price on gm
-29.3%In
$2.00$1.41
Cached
$0.20$0.14
Out
$12.00$8.48
per Mtok*
//01
Recent effective price
What buyers have actually paid on this model recently, across every provider and cache hits.
Input
$1.44
$2.00Cached input
$0.14
$0.20Output
$8.65
$12.00How the effective price is calculated
Requests are load balanced across every provider serving this model, each offering its own rate, so what you pay is a blend rather than a single number. These are the blended rates actually paid — priced at what a provider offered, capped at list.
Measured over 2 windows: 1,639 requests and 2,843,030 input-side tokens. Most recent window closed 2026-08-11 02:24 UTC.
//02
Who's serving this model
Every provider currently serving this model, ranked by discount.
| Provider | Discount | In | Out |
|---|---|---|---|
| Provider 1 | 29.3% off | $1.41 | $8.48 |
| Provider 2 | 29.3% off | $1.41 | $8.48 |
| Provider 3 | 26.2% off | $1.47 | $8.85 |
//03
Performance
Measured on the requests gm routed to this model.
- Throughput
- 74.6 tok/sover 44,452 requests
- Time to first token
- 6.5 sover 44,461 requests
- Request success rate
- 100.0% over 44,474 requests
8,935 requests · 19,727,260 tokens billed · last 12 windowsWindow closed 2026-08-11 02:24 UTC
//04
Benchmarks
Fixed-seed suites gm runs against this model.