OpenAI says it has reduced the price of two GPT-5.6 models, cutting Luna's API price by 80% and Terra's by 20% as it works to make its models more efficient.
OpenAI reduces GPT-5.6 Luna by 80% ($0.20/$1.20/M tokens) and Terra by 20%, improving cost efficiency significantly. For tech teams: Luna becomes viable for high-volume tasks, Terra competitive on enterprise workloads; Sol Fast mode targets latency-sensitive agentic use cases.
OpenAI says it has reduced the price of two GPT-5.6 models, cutting Luna’s API price by 80% and Terra’s by 20% as it works to make its models more efficient.
As per the updated pricing, GPT-5.6 Luna now costs $0.20 per million input tokens and $1.20 per million output tokens, down from $1 and $6.
Likewise, Terra has dropped from $2.50 to $2 per million input tokens and from $15 to $12 per million output tokens.
Artificial Analysis Intelligence Index v4.1
Source: OpenAI
The lower prices are more likely to accelerate enterprise AI deployments than reduce CIO budgets, analysts say.
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