AivisSpeech vs Splice
Side-by-side comparison of features, pricing, and ratings
At a glance
| Dimension | AivisSpeech | Splice |
|---|---|---|
| Pricing | Free | $4.99/mo for 200 credits |
| Primary Use | Japanese text-to-speech for videos and apps | Music production samples and rent-to-own plugins |
| Key Feature | High-quality emotional TTS with local/cloud deployment | 2M+ royalty-free sounds, credit system |
| Platform | Windows/Mac desktop app + Cloud API | Desktop app + DAW plugin (Ableton Live, Studio One, Pro Tools) |
| Best For | Video creators and voice app developers | Music producers and beatmakers |
| Not For | Non-Japanese speakers or GPU-intensive batch processing | Users needing unlimited downloads or mobile access |
Splice and AivisSpeech serve entirely different needs: Splice is for music producers seeking royalty-free samples and plugin rentals, while AivisSpeech is a free Japanese TTS tool for voiceover and AI voice apps. Choose Splice if you make music; choose AivisSpeech if you need natural Japanese speech synthesis.
What real users say: AivisSpeech vs Splice
Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.
AivisSpeech
43 mentions across 3 sources · 33% positive — critical
YouTube, Bluesky, GitHub
What users praise
- • Free to use with both local and cloud options.
- • High-quality, expressive voice synthesis running on CPU.
- • Compatible with Voicevox UI and HTTP API.
- • One-click installation of community and official voice models.
What frustrates them
- • Default voice model was trained on unauthorized voice data.
- • Engine often fails to start on first launch.
- • GPU support on Mac is buggy, limiting performance.
- • SRT subtitle export feature is missing.
Researched Jul 6, 2026
Splice
97 mentions across 6 sources · 38% positive — critical
Hacker News, YouTube, Product Hunt, Stack Overflow, GitHub, Lemmy
What users praise
- • Massive library of 90+ genres, royalty-free and high-quality.
- • Rent-to-own plugins without interest, including Serum 2.
- • Credits roll over, so you only pay for sounds you keep.
- • Deep search filters by genre, key, BPM, and pack.
What frustrates them
- • Many sounds are overused or feel low quality.
- • Desktop app UI is confusing and wastes time.
- • Copyright fears on streaming platforms are real.
- • Credit system can be limiting for heavy users.
Researched Aug 28, 2026
Who should pick which
- Music producerPick: Splice
Splice provides a huge library of royalty-free samples and rent-to-own plugins like Serum 2, essential for modern music production.
- Japanese video creatorPick: AivisSpeech
AivisSpeech offers free, high-quality Japanese TTS with YMM4 integration, ideal for narration and voiceovers in videos.
- LLM voice assistant developerPick: AivisSpeech
Aivis Cloud API provides low-latency synthesis perfect for conversational AI, with private model deployment options.
- Beatmaker on a budgetPick: Splice
Splice’s $4.99/mo plan gives access to millions of sounds, affordable for hobbyists without needing full sample packs.
- Voice model creatorPick: AivisSpeech
AivisSpeech's AIVM Generator and AivisBuilder allow custom model creation from recordings, with open formats for sharing.
Frequently Asked Questions
AivisSpeech vs Splice: which should you choose?
Splice and AivisSpeech serve entirely different needs: Splice is for music producers seeking royalty-free samples and plugin rentals, while AivisSpeech is a free Japanese TTS tool for voiceover and AI voice apps. Choose Splice if you make music; choose AivisSpeech if you need natural Japanese speech synthesis.
Can Splice be used for commercial music production?
Yes, Splice samples are royalty-free, so you can use them in commercial releases without additional fees.
Is AivisSpeech free for commercial use?
Yes, most models on AivisHub use permissive licenses like ACML or CC0, allowing commercial use without credit.
Does Splice work on mobile?
No, Splice does not have a mobile app; you need a desktop app for browsing and downloading samples.
Can AivisSpeech run without internet?
Yes, the desktop app works fully offline; only model downloads and Cloud API require internet.
What DAWs does Splice integrate with?
Splice's Sounds Plugin (beta) supports Ableton Live 12.3+, Studio One Pro 7, Pro Tools 2025.6+, and Studio Pro 8+.
Does AivisSpeech support languages other than Japanese?
Currently, AivisSpeech focuses on Japanese; multilingual support is not mentioned.
Can I rent-to-own plugins with Splice?
Yes, Splice offers rent-to-own for plugins like Serum 2, RC-20, and V Collection 11.
What is the latency of Aivis Cloud API?
Aivis Cloud API claims ultra-low latency as fast as 0.3 seconds for speech synthesis.
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Last reviewed: July 6, 2026