{"version":"1.0","type":"card","id":"4ab47464-9b46-4d12-a3a6-63bad3b92f9d","url":"https://stacklist.com/card/4ab47464-9b46-4d12-a3a6-63bad3b92f9d","title":"OpenAI cut GPT-5.6 Luna 80%, Terra 20% and left flagship Sol unchanged","source_url":"https://www.cnbc.com/2026/07/30/open-ai-price-cut-gpt.html","note":"Signal of the Week. On July 30, three weeks after the GPT-5.6 family launched, Luna API pricing fell from $1/$6 to $0.20/$1.20 per million input/output tokens and Terra from $2.50/$15 to $2/$12, while Sol stayed at $5/$30. OpenAI attributes the move to optimisations across its training and inference stack but has not published how far its serving costs actually fell, so no cost claim here can be checked. The ladder is the evidence: shared infrastructure means a real efficiency gain reaches every model built on it, so a discount total at the bottom, partial in the middle and absent at the top tracks exposure to substitution, not cost.","image":{"url":"https://ucarecdn.com/4541338e-d9ba-4f78-a9bb-caf8c9d7b4e5/","alt":"OpenAI cut GPT-5.6 Luna 80%, Terra 20% and left flagship Sol unchanged","width":750,"height":422},"stack":{"id":"b29a0779-37ee-4177-95ec-7026903a8847","title":"Signals Served #022 - The Price Stopped Being a Cost","url":"https://stacklist.com/c/finance/stack/b29a0779-37ee-4177-95ec-7026903a8847"},"created_at":"2026-08-04T01:46:50.685Z","updated_at":null,"aco":{"summary":"OpenAI announced significant price cuts for two of its GPT-5.6 models: Luna by 80% and Terra by 20%, while keeping Sol unchanged, as the company faces pressure from cost-conscious enterprises and competition from Chinese startups. The move reflects a broader industry shift toward cost-effective AI solutions as companies work to control ballooning AI expenses.","tags":["ai-pricing","gpt-5.6","cost-reduction","market-competition","openai","enterprise-ai"],"key_entities":[{"name":"OpenAI","type":"organization","confidence":0.99},{"name":"Sam Altman","type":"person","confidence":0.95},{"name":"GPT-5.6","type":"technology","confidence":0.99},{"name":"ChatGPT","type":"technology","confidence":0.98},{"name":"Anthropic","type":"organization","confidence":0.95},{"name":"Google","type":"organization","confidence":0.98},{"name":"Microsoft","type":"organization","confidence":0.98},{"name":"Moonshot AI","type":"organization","confidence":0.92},{"name":"Claude Opus 5","type":"technology","confidence":0.9},{"name":"Kimi K3","type":"technology","confidence":0.88},{"name":"Satya Nadella","type":"person","confidence":0.94},{"name":"Evian","type":"location","confidence":0.85},{"name":"G7 summit","type":"event","confidence":0.9}],"classification":"news","language":"en","confidence":0.85,"provenance":{"model":"claude-haiku-4-5","tool":"@stacklist/be@0.1.0","confidence":0.85,"timestamp":"2026-08-04T01:47:03.308Z"},"token_counts":{"approximate":5163,"cl100k":5383},"content_hash":"sha256:ab93423caa298e5b259f91087fc3efecf498de3d4c1ae9afb10525f0214bfe3d","acp_version":"0.2","body_available":true,"body_tokens":5163,"visibility":"public","agent_accessible":true,"status":"final"},"_links":{"self":"/api/public/card/4ab47464-9b46-4d12-a3a6-63bad3b92f9d.json","html":"https://stacklist.com/card/4ab47464-9b46-4d12-a3a6-63bad3b92f9d","md":"/api/public/card/4ab47464-9b46-4d12-a3a6-63bad3b92f9d.md","stack_json":"/api/public/stack/b29a0779-37ee-4177-95ec-7026903a8847.json"}}