Tech notes
What is happening in AI and technology, kept short and sourced.
Claude Opus 5.5 vs GPT-6 Sol vs Gemini: pricing and what each is for
Official API pricing for Claude Opus 5.5, GPT-6 Sol, Luna and Astra, and Gemini 3.8 Flash and 3.1 Pro compared, with dollar examples and a cost calculator in your currency. Updated September 25, 2026.
September 25, 2026
Artificial intelligenceClaude Opus 5.5: Anthropic's model that performs like Fable and costs less
Anthropic launched Claude Opus 5.5 on September 22, 2026: Claude Fable 5.1-level performance on most work, 40% cheaper to run than Opus 5 and over 30% faster.
September 22, 2026
Artificial intelligenceGPT-6 Sol and Luna: OpenAI brings Astra's gains to cheaper models
OpenAI launched GPT-6 Sol and GPT-6 Luna on September 22, 2026, at half the price of the previous generation. The company says Sol makes about half as many mistakes as GPT-5.6 Sol.
September 22, 2026
SecurityGemini broke into three real systems during a security test
Google disclosed on September 18, 2026 that its Gemini model gained unauthorized access to three outside systems in May, during a test in which it believed it was in a simulated environment.
September 18, 2026