Vertex AI Conversation alternatives (2026)
Don’t want to wire up the Vertex AI Conversation API? Drop the file here.
The first 20 minutes of any recording are transcribed free: a recording up to 20 minutes transcribes in full, a longer one is previewed, and a pack from $6 (500 minutes) transcribes the rest and opens every export, and credits never expire.
Vertex AI Conversation compared with its closest alternatives — and with us — on the claims that decide the choice. Anything we can’t source from the vendor’s own pages says “Not verified” instead of a guess.
Side by side
| Claim | Vertex AI Conversation | OpenAI Whisper API | AssemblyAI | Deepgram | Whipscribe |
|---|---|---|---|---|---|
| Pricing | Not verified | Not verified | Not verified | Not verified | $6–$24 one-time packs (credits never expire) · first 20 minutes free |
| Speaker identification | Not verified | Not verified | Not verified | Not verified | Named in the summary, key quotes and chapters |
| Word timestamps | Not verified | Not verified | Not verified | Not verified | Yes |
| Streaming / live | Not verified | Not verified | Not verified | Not verified | No |
| Category | Transcription APIs | Transcription APIs | Transcription APIs | Transcription APIs | Transcription APIs |
Sourcing: whipscribe.com/claims.md — every third-party claim with its vendor quote and check date.
The alternatives, one by one
OpenAI Whisper API
Hosted Whisper large-v3 from OpenAI — $0.006 per minute.
Best for: Teams already on OpenAI's stack who want Whisper without operating a GPU.
AssemblyAI
Universal-2 model + diarization, PII redaction, topic detection, summarization.
Best for: Product teams that want transcription + NLP (summaries, topics, sentiment, PII) in one API.
Deepgram
Nova-2 model, excellent streaming, strong at conversational audio.
Best for: Real-time voice apps (agents, meeting tools) where streaming latency is the product.
Common questions
What is the best alternative to Vertex AI Conversation?
It depends on the job. OpenAI Whisper API is the closest like-for-like (Teams already on OpenAI's stack who want Whisper without operating a GPU). If the job is turning a recording you already have into a timestamped transcript, Whipscribe does that: the first 20 minutes are free, and one-time packs from $6 for 500 minutes transcribe the rest of transcript (credits never expire).
Is there a cheaper alternative to Vertex AI Conversation?
Prices in the table above are sourced from each vendor's own pages where we hold a current quote — anything we can't source says 'Not verified' rather than a guess. Whipscribe's one-time packs are $6 for 500 minutes, $12 for 2,000 and $24 for 5,000 — roughly $0.29–$0.72 per audio hour depending on pack size, credits never expire, no subscription.
How is this comparison sourced?
Every claim about a third-party product or API requires a verbatim quote from that vendor's public pages, with URL and check date, logged in our public claims file at whipscribe.com/claims.md. Cells without a current source display 'Not verified'.
Explore
All transcription tools · By language · By platform · By file format · How-to guides · Transcription services · Transcription API · Pricing
Long recording to get through?
One file up to 10 hours, as an upload or a link: see transcribing a long MP3 or M4A, a podcast episode as text from its link and the SRT generator.
Rather have it done for you?
Free tools cost setup time. When you want a finished transcript instead: see the best transcription services side by side, cheap transcription services and the real cost per hour and our transcription service with prices and turnaround.