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Claude Haiku 5.5 costs $0.10 per million input tokens and $0.50 per million output tokens, a tenth of what Claude Haiku 4.5 charges. That is also exactly what OpenAI charges for GPT-6 Luna, so on paper the two cheapest models from the two biggest labs now cost the same. On a WordPress chatbot they do…

OpenAI launched the Decisions API in public beta on 6 October 2026. It does one narrow job: you send text (or an image) and a short list of questions, and it returns typed answers, such as a yes/no probability, one choice from a fixed list, or a score on a scale. It runs only on…

GLM-5.3 has one official price: Z.ai charges $1.40 per million input tokens and $4.40 per million output tokens, with cached input at $0.26. But GLM-5.3 is an open-weight model, and on 6 October 2026 OpenRouter listed 41 endpoints for it from 32 different hosts. Their input prices ran from $0.03 to $2.80 per million. If…

Mistral’s API price list has an odd shape this autumn. Mistral Medium 3.5 costs $1.50 per million input tokens and $7.50 per million output tokens. Mistral Large 3 costs $0.50 and $1.50. So the model called Medium is three times the price of the model called Large on input and five times on output. If…

Claude Haiku 4.5 costs $1 per million input tokens and $5 per million output tokens, exactly half of Claude Sonnet 5.5’s $2 and $10. On a WordPress chatbot it costs a lot less than half. We sent both models the same support questions from our production server on 4 October 2026, and Haiku 4.5 came…

Gemini 2.5 Flash-Lite is still the cheapest model on Google’s Gemini API price list, at $0.10 per million input tokens and $0.40 per million output tokens. You probably cannot use it. When we called it on 3 October 2026 with an API key that had never used it before, the API returned HTTP 404 with…

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…