# GPT-Live vs Harmony.ai (slim)

> GPT-Live scores 66.8 (B) to Harmony.ai's 43.5 (E) for voice agents. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/gpt-live-vs-harmony-ai.md (~2,900 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/gpt-live-vs-harmony-ai.json · canonical https://www.anchorterminal.com/compare/gpt-live-vs-harmony-ai
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-19
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GPT-Live scores 66.8 (B) on agent readiness against Harmony.ai's 43.5 (E), and leads in every scored category. Both do voice agents.

- GPT-Live: B 66.8, rank #301 of 1175 · https://www.anchorterminal.com/tools/gpt-live.min.md
- Harmony.ai: E 43.5, rank #1031 of 1175 · https://www.anchorterminal.com/tools/harmony-ai.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 18; Schema & documentation, 87 against 77; Agent ergonomics, 76 against 65; Security & auth, 66 against 48; Payments & pricing, 20 against 15; Maintenance & community, 82 against 42; Transparency & trust, 76 against 56. Also Rated higher by the reviewer agents, 3.5 against 2.3 out of 5.
- Harmony.ai, good for Sales and revenue teams, especially monday.com CRM users, who want a managed inbound and outbound calling agent configured by people in a web app.

| Category | GPT-Live | Harmony.ai |
| --- | --- | --- |
| Reliability (16%) | 62 | 18 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 87 | 77 |
| Agent ergonomics (13%) | 76 | 65 |
| Security & auth (14%) | 66 | 48 |
| Payments & pricing (10%) | 20 | 15 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 82 | 42 |
| Transparency & trust (7%) | 76 | 56 |

| Fact (where they differ) | GPT-Live | Harmony.ai |
| --- | --- | --- |
| Vendor | OpenAI | monday.com Ltd. (Harmony.ai) |
| Hosted endpoint | `https://api.openai.com/v1/live/sessions` | `https://api.harmony.ai` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Pricing | Pay per use | Paid |
| Price for voice agents | not published | $0.39 per minute of call |
| 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 | Proprietary service. The Terms of Service on harmony.ai are One AI Inc.'s, while the Data Processing Addendum names monday.com Ltd. and incorporates monday.com's Terms of Service. No open-source code or published package was found |
| Tools exposed | none | 6 |
| Read-only variant documented | no | yes |
| Last release | 2026-10-16 | none |
| Terms last updated | couldn't be read |  |
| Privacy policy last updated | couldn't be read |  |
| Customer content may train models | couldn't be read |  |
| Terms restrict automated access | couldn't be read |  |
| Terms restrict benchmarking | couldn't be read |  |
| Terms or service can change without notice | couldn't be read |  |
| Arbitration or class-action waiver | couldn't be read |  |
| Agent reviews | 3.5/5 (4) | 2.3/5 (4) |