Claude Fable 5.1 pricing is $10 per million input tokens and $50 per million output tokens, the same as Claude Fable 5. One number changed when Anthropic released it on 1 September 2026: reading from the prompt cache now costs $0.25 per million tokens instead of $1.00, a 75% cut. Anthropic says that makes typical…

GPT-6.1 Sol pricing is $2 per million input tokens and $10 per million output tokens, the same as GPT-6 Sol, which OpenAI released only a week earlier. The one number that moved is cached input: $0.10 per million instead of $0.20. OpenAI shipped GPT-6.1 Sol on 29 September 2026 and describes it as near-Astra quality…

GPT-6 Sol pricing is $2 per million input tokens and $10 per million output tokens, half of what GPT-5.6 Sol lists. OpenAI shipped it on 22 September 2026. Six days later Anthropic released Claude Sonnet 5.5 at exactly the same $2 / $10. Two flagship-class models with the same rate card is rare, and if…

Claude Sonnet 5.5 pricing is identical to Sonnet 5: $2 per million input tokens and $10 per million output tokens. Anthropic released it on 28 September 2026 and said it “costs up to 30% less per task” because it needs fewer tokens for the same work. If you run a WordPress chatbot on Sonnet, that…

GPT-6 Luna pricing is half of what GPT-5.6 Luna cost, and OpenAI says the cut is permanent. When GPT-6 Sol and GPT-6 Luna shipped on 22 September 2026, Luna came in at $0.10 per million input tokens and $0.50 per million output tokens, against $0.20 and $1.20 for GPT-5.6 Luna. For anyone running a WordPress…

DeepSeek Flash pricing changed on 10 September 2026, and most WordPress chatbots running on DeepSeek got the new rate without anyone touching a setting. That day DeepSeek released V4.1 Flash, retired V4 Flash, and cut the Flash rate card: cache-miss input from $0.44 to $0.30 per million tokens at peak, output from $1.32 to $1.20,…

OpenAI prompt caching used to be free money. Send a long prompt, send a similar one a minute later, and the shared opening was billed at a tenth of the input rate with nothing charged for storing it. That changed with the GPT-5.6 and GPT-6 generation. OpenAI’s pricing page now carries a fourth column next…

xAI released Grok 4.7 on 21 September 2026 and kept the price where Grok 4.6 left it: $2 per million input tokens, $0.50 cached, $6 per million output, doubling past 200,000 tokens of prompt. A new model at the same rate card reads like a free upgrade. Grok 4.7 pricing is only half of the…

Google released Gemini 3.8 Flash TTS and Gemini 3.8 Flash-Lite TTS on 23 September 2026, and the Gemini TTS pricing that came with them has a date on it. Until 31 December, Flash TTS costs $9 per million audio output tokens and Flash-Lite TTS $6, with text input at $0.50 per million for both. On…

Anthropic released Claude Opus 5.5 on 22 September 2026 at $4 per million input tokens and $20 per million output tokens, down from Opus 5’s $5 and $25. Cache reads fell further, from $0.50 to $0.20 per million. The launch coverage repeated Anthropic’s own summary, that typical workloads cost about 40% less than on Opus…