Introducing Claude Opus 5.5, the first model in our new Claude 5.5 family.
It performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5.
OpenAI expands GPT-6 with cheaper Sol and Luna models
OpenAI just released two new models, GPT-6 Sol and GPT-6 Luna, extending the intelligence introduced earlier this month with GPT-6 Astra to the rest of the lineup. The real headline, though, is price: API costs dropped by 50%
[Breaking News] OpenAI releases GPT-6 Sol and Luna.
API price is half price compared to GPT-5.6. Fable 5.1 level score at about 1/10th the cost. It seems to be quite useful in actual combat. ・The price of 1 million tokens is Sol $2/$10, Luna $0.10/$0.50 ・AutomationBench is 33.2%. 26.9% higher than Opus 5 at approximately 1/11th the cost ・DeepSWE 1.1 is 68.8%. Fable…
Opus 5.5 - in my opinion the best implementation of the task I have seen so far.
Perfect. Total cost: $19.86 Total duration (API): 52m 6s Total duration (wall): 4h 21m 14s (I left it for 3 hours of idle waiting - I was in the city) Total code changes: 2004
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