GPT-6.1 Terra is live on the Felo API with a limited-time 70% discount
Felo now offers GPT-6.1 Terra through its API, with 70% off the openai-mix route: $0.30 per million input tokens and $1.50 per million output tokens, with a 1,050,000-token context window.
What the article says
The model takes text and image input and returns text, with up to 128,000 output tokens. On Felo’s standard routes it costs $1 input and $5 output per million tokens, against $2 and $12 for GPT-5.6 Terra. The post gives no end date for the promotion, which applies only to the openai-mix route.
The article relays OpenAI-reported results, for example a factual error rate on error-inducing prompts falling from 53.6% to 16.7% at low effort. It is called with the model ID gpt-6.1-terra on Felo’s Responses-compatible endpoint using a Felo API key.
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