OpenAI has released GPT-6.1 Terra, a new default tier model that offers significant cost and speed improvements over previous versions. Priced at $1 per million input tokens and $5 per million output tokens, Terra is over three times faster than GPT-6 Astra and GPT-6.1 Sol, while also demonstrating improved accuracy on complex reasoning tasks. The author proposes a routing rule that defaults to Terra for routine tasks like document processing and coding, reserving Sol or Astra for the most challenging reasoning and coding exceptions, and emphasizes measuring cost per completed task rather than per token. AI
IMPACT Sets a new price-performance standard for AI agents, potentially lowering operational costs and increasing adoption.
RANK_REASON Frontier-lab model release with system card and pricing details. [lever_c_demoted from frontier_release: ic=1 ai=1.0]
- Agents Last Exam
- ChatGPT Work
- Codex
- GPT-5.6 Terra
- GPT-6.1 Sol
- GPT-6.1 Terra
- GPT-6 Astra
- OpenAI
- OSWorld 2.1
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