OpenAI announced a massive 80% price drop for GPT-5.6 Luna and a 20% reduction for GPT-5.6 Terra, enabled by GPT-5.6 Sol autonomously optimizing production inference kernels. Luna is now priced at $0.20/$1.20 per million tokens, undercutting Google's Gemini 3.1 Flash-Lite and making it roughly 5x cheaper than Anthropic's Claude Haiku 4.5.
Background
OpenAI has been aggressively cutting prices for its GPT-5.6 series while introducing GPT-5.6 Sol, a model capable of optimizing its own inference pipeline. This reflects the ongoing price war in the LLM market.
- Source
- Simon Willison
- Published
- Jul 31, 2026 at 07:58 AM
- Score
- 7.0 / 10