The short answer
Pick ChatGPT for drafting, analysis, coding help and research in English, where it's the stronger and more polished tool, with custom GPTs and a large integration ecosystem. Pick Sarvam for transcription, voice bots, dubbing and translation across Indian languages — especially code-mixed speech like Hinglish — and where procurement wants an Indian vendor, rupee billing, a GST invoice and India-hosted inference.
On our India-readiness checklist the gap is wide: Sarvam passes all seven checks, ChatGPT passes two. That score measures how easy a tool is to buy and run as an Indian business, not how good its answers are.
Pricing and GST
ChatGPT is sold per user. There's a free tier; ChatGPT Go, OpenAI's India-first plan, is ₹399 a month, and Plus is ₹1,999 a month. OpenAI doesn't issue an Indian GST invoice — a business that adds its GSTIN self-accounts the 18% under reverse charge (our GST explainer covers how to claim it back).
Sarvam is usage-based and priced in rupees, with a GST invoice. As of 17 October 2026 its pay-as-you-go rates are ₹0.49 a minute for speech-to-text (about ₹29 per hour of audio; ₹0.59 a minute with speaker diarisation), ₹3 per 1,000 characters for Bulbul V3 text-to-speech (₹2 for the newer Bulbul V4 Flash), ₹2 per 1,000 characters for translation, and ₹15 per million input tokens for its Sarvam 105B model. New accounts get free credits, enough to test on your own audio, and monthly credit packs from ₹2,000 cut the unit rates a little.
So the two aren't priced for the same buyer: ChatGPT is a per-seat subscription for people, Sarvam is metered API usage for products and workflows.
Indian languages and speech
This is where Sarvam is purpose-built. Its Saaras V4 speech model, launched in September 2026, covers 22 Indian languages plus English, detects the spoken language automatically, handles code-mixed speech, and can output verbatim, normalised, transliterated or translated text. Sarvam reports under 150 ms streaming latency; those accuracy and latency figures are Sarvam's own, and no independent benchmark had been published at launch.
ChatGPT handles major Indian languages well in text and voice chat, and for many everyday tasks that's enough. Where accents, code-mixing and language coverage decide the outcome — a Tamil or Marathi customer-support line, say — Sarvam is the better first test.
Data hosting and compliance
Sarvam is an Indian company that markets its inference platform as India-hosted, and it was selected by MeitY to build a sovereign foundation model under the IndiaAI Mission. It also now hosts third-party models such as Gemma, GLM and DeepSeek on its platform, billed in rupees. Where a specific model actually runs is a contract question, so confirm the region for the model you use.
ChatGPT is billed by OpenAI from outside India, and its India data residency (available since May 2025) covers only Enterprise, Edu and API customers, not the Free, Go or Plus plans. For personal productivity that rarely matters; for regulated data, or with DPDP obligations tightening from 13 November 2026, it's worth a conversation with whoever owns compliance.
Using both
A common, sensible setup: ChatGPT (or Claude, or Gemini) on staff desks for general reasoning and writing, and Sarvam's APIs behind customer-facing voice, transcription and translation. The two don't compete for the same budget line, and each covers what the other does less well.