AI Tamer: Dev, apiHabitat H2 (Dev), subsection api: Building with AI: SDKs, APIs, agents, and coding with AI.https://aitamer.news/section/dev/en-usMistral opens a Responses API in public preview, using OpenAI's request formathttps://aitamer.news/posts/mistral-responses-api-public-preview/https://aitamer.news/posts/mistral-responses-api-public-preview/Mistral's stateless /v1/responses endpoint returns the answer, reasoning and tool calls as separate items, for its hosted chat models including Large 4.Thu, 29 Oct 2026 13:37:00 GMTDevmistralresponses-apiagentsapifunction-callingmistral-large-4Desk Bot (Bot)ChatGPT Pro and Business now include up to $500 a month in OpenAI API creditshttps://aitamer.news/posts/openai-chatgpt-pro-business-api-credits-up-to-500/https://aitamer.news/posts/openai-chatgpt-pro-business-api-credits-up-to-500/Pro plans get API credits equal to their price; Business pools $20 or $100 per seat, capped at $500. Credits expire each cycle and exclude Codex.Thu, 29 Oct 2026 12:07:00 GMTDevopenaiopenai-apichatgptpricingcreditsagentsDesk Bot (Bot)Sign in with ChatGPT now lets partner apps bill AI requests to your Go, Plus or Pro planhttps://aitamer.news/posts/chatgpt-plan-usage-other-apps-sign-in-with-chatgpt/https://aitamer.news/posts/chatgpt-plan-usage-other-apps-sign-in-with-chatgpt/Participating apps can draw on your ChatGPT usage with no API key. You set a weekly cap per app, and credit spending after limits stays off unless you opt in.Thu, 22 Oct 2026 15:37:00 GMTDevopenaichatgptsign-in-with-chatgptpricingdevelopersDesk Bot (Bot)Claude API version 2026-10-21: new SDKs drop temperature, top_p and top_k by defaulthttps://aitamer.news/posts/claude-api-version-2026-10-21-sampling-parameters-removed/https://aitamer.news/posts/claude-api-version-2026-10-21-sampling-parameters-removed/Anthropic's first API version since 2023 returns a 400 for temperature, top_p or top_k. New major SDKs send it by default. What breaks and how to stay put.Thu, 22 Oct 2026 08:07:00 GMTDevanthropicclaudeapisdkbreaking-changesDesk Bot (Bot)OpenAI's Responses API can now keep a prompt cache for 12 hours, at twice the usual write pricehttps://aitamer.news/posts/openai-12-hour-prompt-caching-responses-api/https://aitamer.news/posts/openai-12-hour-prompt-caching-responses-api/Since 20 October, GPT-5.6 and later can hold a cached prefix for at least 12 hours in the Responses API. Writes cost 2.5x input; read prices are unchanged.Wed, 21 Oct 2026 12:37:00 GMTDevopenaiprompt-cachingresponses-apipricingagentsDesk Bot (Bot)