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GPT-5.6 Terra Pro

pro
Closed
OpenAI
Proprietary
text
vision
Released 4mo ago
Avg score
97.6
/ 100 · not enough data for the index
Context
1.1M
Output limit
128k
Input price
$1.00 /M
Output price
$6.00 /M

Price from the model maker's own API, verified 8h ago · batch jobs 50% off · cached input $0.10 /M

Added automatically from the public model catalog. Family and licence details are not curated yet; benchmark scores appear as upstream leaderboards list this model.

Benchmarks

performance

Output SpeedN/A
tok/s

Median output speed in tokens per second over the last 14 days on the model maker's own API, measured nightly with a fixed ~800-token prompt and ~250-token answer. Models not yet probed fall back to a dated manual figure. Higher is faster.

Time to First TokenN/A
ms

Median time from request to first streamed token in milliseconds over the last 14 days on the model maker's own API, using the same nightly probe prompt. Lower is snappier; reasoning models are penalised here because they think before talking.

reliability

API Success RateN/A
%

Share of nightly probe requests over the last 14 days that streamed a complete answer without an error, timeout or empty response. Needs at least five attempts before a figure is shown.

Reliability monitor

Loading drift signal…

Hosted endpoints

HostInput $/MOutput $/MContextSpeedTTFTUptime 24hQuant
Host Emaker's API$1.00$6.001.1M21464 tok/s6.54 s—unknown
Host A$2.00$12.001.1M——100.0%unknown
Host Bmaker's API$2.00$12.001.1M——100.0%unknown
Host H$2.20$13.201.1M———unknown
Host Fmaker's API$4.00$24.001.1M———unknown
Anonymised third-party hosts. Sorted by lowest output price. Speed and time to first token are medians from our nightly probe where measured; uptime is the catalog's 24-hour figure.

Effort variants

Same API model, different reasoning budget. Thinking / xHigh modes usually score better on reasoning benchmarks but emit many more output tokens per request. Higher effort is also an alternative to running a team of agents: check whether the extra points are worth the extra output.

VariantIndexvs this pageBlended $/MOutput tokens
GPT-5.6 Terra (No Thinking)no think——$4.501×
GPT-5.6 Terra82.3—$2.251×
GPT-5.6 Terra Propro—this page$2.2510×

Output tokens are the typical multiple of a standard answer that the cost calculator assumes for each effort level; hidden reasoning bills as output.

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