00:07
2026-09-30
startupfortune.com
large-language-models
OpenAI and Anthropic Both Just Launched Cheaper Flagship AI Models
OpenAI released GPT-6.1 Sol on September 29, 2026 at DevDay in San Francisco and Anthropic shipped Claude Sonnet 5.5 on September 28, each pricing near-flagship AI at $2 per million input tokens and $…