Author’s note: A breakdown of three meanings of “free” for GPT-6.1 Terra, including regional restrictions, rate limits, and the cheapest way to test it. Bottom line: GPT-6.1 Terra has no free API credits. The only free usage available comes from allowances included with ChatGPT Work/Codex plans. For developers in China, a more realistic option is…
"Why is Gemini 3.1 Pro Preview so slow again?" "What's up with the 429 RESOURCE_EXHAUSTED errors?" If you've been using Google's latest Gemini 3.1 Pro Preview API recently, you've probably been asking these questions daily. First token response times (TTFT) can hit 41 seconds, 429 errors are frequent even for paying users, and the Preview…
Author's Note: A deep dive into the root cause of the 429 error in Nano Banana 2 (Gemini 3.1 Flash Image Preview), comparing the RPD/RPM/IPM limits of AI Studio and Vertex AI, and providing 5 strategies to overcome rate limiting. Constantly hitting the 429 RESOURCE_EXHAUSTED error when generating images with Nano Banana 2? You're not…
