Ep 127: OpenAI just slashed GPT-5.6 Luna prices 80% and added a faster Sol mode, making frontier…

Models & Agents — Video Edition · Jul 31, 2026 · 8m

Models & Agents OpenAI just slashed GPT-5.6 Luna prices 80% and added a faster Sol mode, making frontier-class intelligence dramatically cheaper for API and agent workloads. What You Need to Know: OpenAI passed efficiency gains from GPT-5.6 Sol into 80% lower Luna pricing ($0.20/$1.20 per million tokens) and 20% lower Terra pricing, plus a Fast mode for Sol that delivers up to 2.5× speed at 2× cost. Codex allowances increase as a result, and Auto-review in ChatGPT and Codex CLI is moving to Luna for an expected 10× cost reduction. Builders should test Luna in high-volume agent loops this week…