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ModelCap

GPT-5.6 Terra Pro

API only

OpenAI·openai/gpt-5.6-terra-pro

GPT-5.6 Terra Pro is a language model published by OpenAI. 5 OpenRouter endpoints are published in the latest snapshot. It accepts file, image, text input and returns text. The published context limit is 1.1M tokens. The catalogue declares support for reasoning, tool use, structured outputs.

Rank and capability evidence
See GPT-5.6 Terra
Route-specific operations remain below
Market Gravity
44.9
Secondary market signal

This separately configured or accelerated route is reviewed as the same underlying model identity as GPT-5.6 Terra. That canonical product owns rank and capability evidence; pricing, providers and other operational differences remain route-specific below.

Input
$1.00
per 1M tokens
Output
$6.00
per 1M tokens
Context
1.1M
tokens
Providers
5
endpoints
Gateway spend
—
latest · Vercel share

Providers

Uptime measured over the last 30 minutes
ProviderInputOutputContextQuantUptime
OpenAIflexCheapest$0.50$3.001.1M—99.91%
OpenAI$1.00$6.001.1M—99.91%
OpenAIpriority$2.00$12.001.1M—99.91%
Azure$2.50$15.001.1M——
Azureeu$2.75$16.501.1M——

Deployment readiness

Metadata index
33.1
limited · 38% metadata coverage
Not capability
Artifact reproducibility
0.0
Access & legal clarity
30.3
Deployability
90.0
Evaluation provenance
0.0

Missing: artifactReproducibility.revision-sha, artifactReproducibility.architecture-and-model-type, artifactReproducibility.parameter-count, artifactReproducibility.serialized-weight-format, artifactReproducibility.base-lineage, accessLegalClarity.declared-license, accessLegalClarity.resolvable-license-terms, evaluationProvenance.admitted-evaluation-observations, evaluationProvenance.capability-family-breadth, evaluationProvenance.evaluation-source-diversity, evaluationProvenance.identity-and-source-confidence, evaluationProvenance.evaluation-dataset-revisions.

A metadata completeness and deployability index—not a safety certification, quality grade, or production-readiness claim.

Market activity

Venue coverage
Market Gravity
44.9
OpenRouter weekly popularity
#71 of 298

Market Gravity uses OpenRouter’s full-catalogue popularity order. Sparse Vercel top-ten observations appear only when published and do not affect the score.

Market Gravity breakdown

Usage55%
25.2

OpenRouter weekly popularity across the full model catalogue.

Liquidity25%
76.2

Independent providers versus the model's open or closed cohort, weighted by uptime.

Open reach15%
50.0

Hugging Face 30-day downloads for open models; neutral for closed models.

Freshness5%
89.4

Time since first public availability, on a six-month half-life.

Specification

Context window
1.1M tokens
Max output
128K tokens
Inputs
File, Image, Text
Outputs
Text
Tokenizer
GPT
Cached input tokens
$0.10 / 1M
First seen on OpenRouter
9 Jul 2026
Knowledge cutoff
2026-02-16

Capabilities

  • Supported: Reasoning
  • Supported: Tool use
  • Supported: Structured output
  • Supported: Response format
  • Supported: Moderated