OpenAI: GPT-5.2 Chat context window limit decides whether a key can enter a production route. TestKey reads model ID openai/gpt-5.2-chat, provider OpenAI, catalog context, real-key headers, 429 errors, and region signals together.
OpenAI: GPT-5.2 Chat context window limit decides whether a key can enter a production route. TestKey reads model ID openai/gpt-5.2-chat, provider OpenAI, catalog context, real-key headers, 429 errors, and region signals together.
Read-only check. Detection data burns after 5 minutes.
OpenAI: GPT-5.2 Chat context window limit is not just a number. It should become route throttling, sale tags, headroom alerts, fallback model suggestions, and price protection.
