OpenAIElevenLabsAudio matchupReal-time voice dialog
GPT-Realtime 2.1vs.Eleven v3 Conversational
Which model is better?
Eleven v3 Conversational is slightly ahead in independent tests, but the lead is not certain.
Independent testsDesignArena
GPT-Realtime 2.10 of 1
Eleven v3 Conversational0 of 1
Popularityout of 100
GPT-Realtime 2.1ahead41
Eleven v3 Conversational31
Weights and access
GPT-Realtime 2.1proprietary
Eleven v3 Conversationalproprietary
Priceverbatim from the provider
GPT-Realtime 2.1$4 input, $0.40 cached input, $24 output per 1M tokens
Eleven v3 Conversationaln/a
Pick GPT-Realtime 2.1 for
more popular
Pick Eleven v3 Conversational for
leaning DesignArena
Shared tests
Independent evaluators and leaderboards only, the newest shared snapshot per evaluator. With 95 % ranges a lead counts when they do not overlap; for hit rates, when it holds in a 95 % test. Without any uncertainty figure at most “slightly ahead”.
DesignArena
Eleven v3 Conversational slightly aheadDesignArena Audio Realism Elo
GPT-Realtime 2.11,064
Eleven v3 Conversational1,238
as of October 28, 2026
Source · latest October 28, 2026
All data side by side
Prices are verbatim from the provider, because audio models bill per minute, character or token.
| GPT-Realtime 2.1 | Eleven v3 Conversational | |
|---|---|---|
| Task | Real-time voice dialog | Real-time voice dialog |
| Developer | OpenAI | ElevenLabs |
| Status | Active | Active |
| Weights | proprietary | proprietary |
| Runs locally | no | no |
| Price | $4 input, $0.40 cached input, $24 output per 1M tokens | n/a |
| Popularity (out of 100) | 41 | 31 |