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GPT-6.1 Terra

GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol.

Pricing

Input
$1.05per 1M tokens
Output
$5.25per 1M tokens
Cache read
$0.0525per 1M tokens
Cache write
$1.31per 1M tokens
Max output
128,000tokens

OpenRouter's price plus OpenRouter's 5% platform fee. Deference adds no markup.

~/.codex/config.toml

model = "openai/gpt-6.1-terra"
model_provider = "deference"
web_search = "disabled"

[model_providers.deference]
name = "Deference"
base_url = "https://deference.si/v1"
wire_api = "responses"
env_key = "DEFERENCE_API_KEY"
Codex, set up for GPT-6.1 Terra

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