GPT-6.1 Terra
by OpenAItext+image+file->text4 endpoints
Overview
GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol. It is suited for everyday agentic, coding, and writing work, is particularly strong at understanding screenshots and on-screen content, and is efficient enough for high-volume workloads.
Capabilities
Text generation
Image understanding
Tool use / Function calling
Structured output
Extended reasoning
Prompt caching
Long context
File input
Deterministic seed
Modalities
Input
FileImageText
Output
Text
Technical Specifications
Context Window
1.1M tokens
Max Output
128K tokens
Tokenizer
GPT
Content Moderation
Enabled
Uptime (24h)
10000.0%
Country
🇺🇸US
Release Date
October 26, 20261w
Supported Parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetoolsverbosity
Pricing
Per 1M tokens
Input$1.00
Output$5.00
Cache read$0.05
Cache write$1.25
Added
October 26, 2026
Last synced 11/7/2026