# eSpeak NG vs Murf AI

**Leader by Vioscale score:** Murf AI

| Attribute | eSpeak NG | Murf AI |
|---|---|---|
| **Vioscale score** | 49.5 (26% (low)) | 69.2 (53% (medium)) |
| activity.commits_last_30d | 36 | - |
| adoption.github_stars | 6,762 | - |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true}` |
| description.long | A lightweight open source text-to-speech engine that converts written text into spoken audio using formant synthesis. Available as a command-line tool and C/library for integration across Linux, Windows, Android, and other platforms. | A text-to-speech platform that synthesizes realistic AI voices for video narration, presentations, training content, and customer interactions. Users can create voiceovers without hiring voice actors, with fine-grained control over tone and pacing. |
| features.capabilities | - | `{"voice_cloning":true,"streaming_synthesis":true,"emotion_style_control":true}` |
| integrations.count | 3 | 6 |
| integrations.list | `[{"name":"MBROLA"},{"name":"SAPI5"},{"name":"C API library integration"}]` | `[{"name":"Canva"},{"name":"PowerPoint"},{"name":"Google Slides"},{"name":"Facebook"},{"name":"Google"},{"name":"Windows apps"}]` |
| language.primary | C | - |
| license.spdx | GPL-3.0 | - |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"mac":true,"linux":true,"android":true,"windows":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","summary":"Free and open source","freeTier":true,"sourceUrl":"https://github.com/pricing","retrievedAt":"2026-08-19T22:01:16.060Z"}` | `{"type":"subscription","plans":[{"free":true,"name":"Free","summary":"Free - 10 minutes/month","features":["10 Projects","10 minutes of Voice Generation","1 Editor","Access to Business Plan features for testing (no downloads, no commercial rights)"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Basic plan for testing","contactSales":false,"includedLimits":{"editors":"1","projects":"10","voice_generation":"10 minutes/month"}},{"free":false,"name":"Creator","summary":"$19/month or $228/year - 24 hours/year voice generation","features":["100 Projects","24 hours/year of Voice Generation","200+ AI voices with styles and tonalities","Multi-Native Voices","Unlimited Downloads","Canva Integration","Commercial Rights"],"components":[{"kind":"fixed","amount":19,"period":"month","currency":"USD"},{"kind":"fixed","amount":228,"period":"year","currency":"USD"}],"description":"For individuals and freelancers","contactSales":false,"includedLimits":{"projects":"100","voice_generation":"24 hours/year"}},{"free":false,"name":"Business","summary":"$66/month or $792/year - 96 hours/year voice generation","features":["Everything in Creator","500 Projects","96 hours/year of Voice Generation","Emotional voice control (Say It My Way)","PowerPoint Integration","Audio to Text conversion","Murf voices for Windows apps","High-speed renders","Access to AI Voice Specialist"],"components":[{"kind":"fixed","amount":66,"period":"month","currency":"USD"},{"kind":"fixed","amount":792,"period":"year","currency":"USD"}],"description":"Advanced features for high-usage business needs","contactSales":false,"includedLimits":{"projects":"500","voice_generation":"96 hours/year"}},{"free":false,"name":"Enterprise","summary":"Custom pricing - Unlimited voice generation and projects","features":["Everything in Business","Unlimited Projects","Unlimited Voice Generation","Custom Editors","Sharing & Collaboration","AI Translation","Single Sign-On (SSO)","No Training on Your Data","Custom Voice Clones (Add-on)","IT Security Assessment","PO & Invoicing","Dedicated Customer Success Manager","Dedicated Account Manager","Success Planning"],"description":"Unlimited access with enterprise-grade security","contactSales":true,"includedLimits":{"projects":"Unlimited","voice_generation":"Unlimited"}}],"addOns":[{"name":"Custom Voice Clones"},{"name":"Additional Voice Generation Credits"}],"summary":"From $19/month. Free tier available. Yearly billing saves 33%.","currency":"USD","freeTier":true,"sourceUrl":"https://murf.ai/pricing","retrievedAt":"2026-08-25T15:44:24.365Z","startingPrice":{"amount":19,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | free | mid |
| pricing.starting_price | - | `{"amount":19,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| release.cadence_days | 799 | - |
| release.history | `[{"url":"https://github.com/espeak-ng/espeak-ng/releases/tag/1.52.0","date":"2024-12-12T13:47:27Z","type":"stable","version":"1.52.0"},{"url":"https://github.com/espeak-ng/espeak-ng/releases/tag/1.51","date":"2022-04-02T19:43:39Z","type":"stable","version":"1.51"},{"url":"https://github.com/espeak-ng/espeak-ng/releases/tag/1.50","date":"2019-12-02T12:34:16Z","type":"stable","version":"1.50"},{"url":"https://github.com/espeak-ng/espeak-ng/releases/tag/1.49.2","date":"2017-09-24T09:37:08Z","type":"stable","version":"1.49.2"},{"url":"https://github.com/espeak-ng/espeak-ng/releases/tag/1.49.1","date":"2017-01-21T21:20:08Z","type":"stable","version":"1.49.1"},{"url":"https://github.com/espeak-ng/espeak-ng/releases/tag/1.49.0","date":"2016-09-10T10:20:46Z","type":"stable","version":"1.49.0"}]` | - |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.iso27001 | - | yes |
| security.scorecard | 4.5 | - |
| security.soc2 | - | yes |

## Capabilities (Text To Speech)

| Capability | eSpeak NG | Murf AI |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Voice cloning | - | ✓ |
| Zero shot cloning | - | - |
| Streaming synthesis | - | ✓ |
| Ssml support | - | - |
| Emotion style control | - | ✓ |
| On device offline | - | - |
| Open source | - | - |
| Watermarking provenance | - | - |
| Cloning consent verification | - | - |

*Source: Vioscale. Generated 2026-09-01T15:14:01.453Z. "-" = undocumented, not absent.*