Gemini 2.5 Pro — strong reasoning, 2M context, native multimodal (text, image, video, audio).
curl https://oneapikey.app/v1/v1beta/models/gemini-2.5-pro:generateContent \
-H "Authorization: Bearer $ONEAPIKEY_API_KEY" \
-H "X-APIMarket-Product: gemini-2-5-pro" \
-H "Content-Type: application/json" \
--data '{"model":"google/gemini-2-5-pro","messages":[{"role":"user","content":"hi"}]}'