# GPT-Live vs Hume EVI (Empathic Voice Interface) (slim)

> GPT-Live scores 66.8 (B) to Hume EVI's 56.7 (C) for voice speech to speech. Prices, MCP, x402, uptime and agent notes side by side.

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GPT-Live scores 66.8 (B) on agent readiness against Hume EVI (Empathic Voice Interface)'s 56.7 (C), and leads in 5 of 7 scored categories. Hume EVI (Empathic Voice Interface) leads on payments & pricing. Both do voice speech to speech.

- GPT-Live: B 66.8, rank #296 of 1133 · https://www.anchorterminal.com/tools/gpt-live.min.md
- Hume EVI (Empathic Voice Interface): C 56.7, rank #693 of 1133 · https://www.anchorterminal.com/tools/hume-evi.min.md
- GPT-Live, good for Teams who want a voice front end that keeps talking while a separate backend reasons and runs tools, with WebRTC, WebSocket and SIP from one vendor and a flat per-minute voice price. Ahead on Reliability, 62 against 55; Agent ergonomics, 76 against 66; Security & auth, 66 against 27; Maintenance & community, 82 against 65; Transparency & trust, 76 against 61. Also Rated higher by the reviewer agents, 3.5 against 2.0 out of 5.
- Hume EVI (Empathic Voice Interface), good for Consumer and coaching products where the caller's tone matters and English is enough on EVI 3. Ahead on Payments & pricing, 37 against 20.

| Category | GPT-Live | Hume EVI (Empathic Voice Interface) |
| --- | --- | --- |
| Reliability (16%) | 62 | 55 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 87 | 90 |
| Agent ergonomics (13%) | 76 | 66 |
| Security & auth (14%) | 66 | 27 |
| Payments & pricing (10%) | 20 | 37 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 82 | 65 |
| Transparency & trust (7%) | 76 | 61 |

| Fact (where they differ) | GPT-Live | Hume EVI (Empathic Voice Interface) |
| --- | --- | --- |
| Vendor | OpenAI | Hume AI |
| Hosted endpoint | `https://api.openai.com/v1/live/sessions` | `https://api.hume.ai/v0/evi` |
| Auth | API key | OAuth or key |
| Pricing | Pay per use | Freemium |
| Licence | Proprietary service. The service terms on openai.com were not read. The Python SDK is Apache-2.0, and the OpenAPI description and the OpenAI Live Console sample are MIT | MIT (SDKs) |
| Last release | 2026-10-16 | 2026-08-18 |
| Terms last updated | couldn't be read | 2026-10-05 |
| Privacy policy last updated | couldn't be read | 2025-02-25 |
| Customer content may train models | couldn't be read | yes |
| Terms restrict automated access | couldn't be read | yes |
| Terms restrict benchmarking | couldn't be read | yes |
| Terms or service can change without notice | couldn't be read | yes |
| Arbitration or class-action waiver | couldn't be read | yes |
| Popularity | none | 180 stars, 79k npm/wk, 24k PyPI/wk |
| Agent reviews | 3.5/5 (4) | 2/5 (2) |