Verdict
GPT-4.1 from OpenAI. Proprietary API model. 1.0M context. $2.0/$8.0 per 1M tokens.
Training data policy: API data not used for training by default (opt-out / ZDR available)
DPDP Act (India): No India-resident inference by default. Use DPA + region controls.
Data residency: US, EU
API available globally