AI TTS Pricing & Commercial Use Comparison (2026)
Total cost of ownership across 8 TTS tools at three usage scales. This is a data page — not a tool ranking. We compare pricing models, hidden fees, and commercial licensing transparency.
Disclosure: SpeechGeneration AI is our product ($5-30/mo). Google Cloud is cheaper per character at high volume. ElevenLabs offers better voice quality. We're the cheapest subscription with commercial rights on all tiers including free.
Quick answer: Cheapest tool changes by scale. At 10K chars/month: SG.ai free ($0). At 1M chars/month: Google Cloud ($4-16/M). At 100M+ chars/month: self-hosted open source ($20-80/M). The #1 hidden cost: commercial licensing NOT included in free tiers (NaturalReader, Speechify, TTSReader).
The key insight: Per-character cost is NOT total cost. Hidden fees (rounding, overages, support tiers, volume minimums) add 10-50% to the advertised price. This page shows actual total cost of ownership.
Editor's Note: SpeechGeneration AI is our product. At low volume ($5/mo), we're competitive. At high volume (1M+ chars), Google Cloud and Amazon Polly are cheaper per character. We say so honestly. For SG.ai-specific pricing, see our pricing page.
Contents
TCO at Three Scales: Who Wins Where
The cheapest TTS tool changes depending on your usage volume. Subscription models win at low volume (predictable cost); pay-per-use wins at high volume (no waste); self-hosted wins at massive scale (amortized infrastructure).
Scale 1: Individual Creator (10K-100K chars/month)
| Tool | Monthly | Annual |
|---|---|---|
| SG.ai Free | $0 | $0 |
| SG.ai Starter | $5 | $60 |
| ElevenLabs Starter | $5 | $60 |
| NaturalReader | $9.99 | $120 |
Winner: SG.ai (free tier + commercial rights) or ElevenLabs Starter ($5/mo for better quality)
Scale 2: Business (1M-10M chars/month)
| Tool | Monthly | $/1M chars |
|---|---|---|
| Google Cloud Neural | ~$16-160 | $16 |
| Fish Audio | ~$15-150 | $15 |
| Amazon Polly Neural | ~$19-190 | $19 |
| SG.ai Studio | $30 | $67 |
| ElevenLabs Pro | $99 | $198 |
Winner: Google Cloud or Fish Audio (pay-per-use wins at volume). SG.ai still competitive if you value web interface over API.
Scale 3: Enterprise (100M+ chars/month)
| Tool | Monthly | $/1M chars |
|---|---|---|
| Self-hosted F5-TTS | $2K-5K infra | $20-50 |
| Google Cloud (negotiated) | ~$800-1,200 | $8-12 |
| ElevenLabs Business | $1,320 | ~$26 |
Winner: Self-hosted or Google Cloud enterprise-negotiated. For architecture details: TTS Technology guide.
Pricing Model Types Explained
Subscription (Fixed Monthly + Character Quota)
Tools: SG.ai ($5-30/mo), ElevenLabs ($5-99/mo), Murf ($19/seat). Fixed monthly cost includes a character allowance. Predictable budget. You lose unused characters at month end. Best for: consistent monthly usage at low-to-medium volume.
Pay-Per-Use (Per Character, No Commitment)
Tools: Google Cloud ($4-16/M), Amazon Polly ($4-19/M), Fish Audio (~$15/M). Pay only for what you generate. No wasted characters. Scales linearly. Best for: variable usage, high volume, or sporadic projects.
Hybrid (Subscription + Overage Charges)
Tools: ElevenLabs (overages above plan limit), Play.ht. Fixed base + per-character charges when you exceed your quota. Can be unpredictable if usage spikes. Check overage rates before committing.
Self-Hosted (Infrastructure Cost, No Per-Character Fee)
Tools: F5-TTS, XTTS-v2, Kokoro (open source). Pay for GPU infrastructure. No per-character fees. Unlimited characters. Best for: 10M+ chars/month with ML engineering capability.
Full Pricing Comparison
Apr 2026| Tool | Free Tier | Entry Price | $/1M chars | Commercial | Hidden Fees | Verified |
|---|---|---|---|---|---|---|
| SG.ai | 10K chars | $5/mo | $67-83 | All plans | None | Apr 2026 |
| ElevenLabs | 10K chars | $5/mo | $167-330 | Paid only | Overages | Apr 2026 |
| Google Cloud | 1M chars | Pay-per-use | $4-16 | Yes | Failed calls | Apr 2026 |
| Amazon Polly | Free tier | Pay-per-use | $4-19 | Yes | SSML parsing | Apr 2026 |
| Azure TTS | 500K free | Pay-per-use | $4-15 | Yes | Region pricing | Apr 2026 |
| Fish Audio | Limited | ~$10/mo | $15 | Yes | None published | Apr 2026 |
| Murf | 7-day trial | $19/seat | ~$320 | Paid | Per-seat | Apr 2026 |
| Play.ht | Limited | $29/mo | ~$97 | Paid | Overages | Apr 2026 |
$/1M chars formula: (Plan price ÷ included characters) × 1,000,000. For subscription tools, monthly price without annual discount. For pay-per-use, published neural voice rate. All USD, excluding tax. Pricing changes — verify on official pages.
Commercial Licensing Matrix
Can you use the audio commercially (YouTube, ads, courses, client work)? This table cuts through the ambiguity:
| Tool | Free Commercial? | Paid Commercial? | Cloning Risk | Compliance |
|---|---|---|---|---|
| SG.ai | ✓ Yes | ✓ All plans | None | — |
| ElevenLabs | ✗ No | ✓ Paid | Medium | — |
| Google Cloud | ✓ Yes | ✓ | None | GCP |
| Amazon Polly | N/A | ✓ | None | AWS |
| Murf | Trial only | ✓ $19+ | None | — |
| NaturalReader | ✗ No | ✓ $9.99+ | None | — |
| Speechify | ✗ No | ✓ Premium | None | — |
For detailed commercial licensing analysis including voice cloning IP risk, see our Commercial Use Safety Guide.
Real-World Cost Scenarios
| Scenario | Monthly Chars | Best Tool | Monthly Cost |
|---|---|---|---|
| YouTuber (5 videos/week) | ~100K | SG.ai Starter | $5 |
| E-learning platform (100 courses) | ~5M total | Google Cloud | ~$80 total |
| Publisher (100 audiobooks) | ~40M total | SG.ai Studio bulk | ~$2,670 total |
| Voice agent (50M chars/month) | 50M | Enterprise negotiation | $400-600 |
| Podcast (weekly, 30 min) | ~120K | SG.ai Starter | $5 |
When to Self-Host vs. Use API
Self-hosted open-source TTS (F5-TTS, XTTS-v2, Kokoro) becomes cost-competitive above ~10 million characters per month. Below that threshold, the infrastructure overhead — GPU rental ($1-3/hour for A100), monitoring, scaling, error handling, model updates — isn't worth the per-character savings.
Use API when: under 10M chars/month, no ML engineering team, need plug-and-play deployment, need enterprise support and SLAs.
Self-host when: over 10M chars/month, have ML ops capability, need on-premises deployment (regulated industries), need maximum cost control at massive scale.
For detailed architecture trade-offs, see our TTS Technology guide.
Frequently Asked Questions
What's the cheapest TTS at my usage level?
Depends on scale. At 10K chars/month: SG.ai free tier ($0) or ElevenLabs Starter ($5/mo). At 1M chars/month: Google Cloud TTS ($4-16/M) beats subscriptions. At 100M+ chars/month: self-hosted open source ($20-80/M amortized) or enterprise-negotiated contracts. The cheapest tool changes by volume — subscription wins at low volume, pay-per-use at medium, self-hosted at massive scale.
What hidden fees should I watch for?
Five common hidden costs: (1) Per-minute rounding — short clips billed as full minutes, adding 10-50%. (2) Failed API call charges. (3) Voice cloning setup fees ($0-500). (4) Premium support tiers (+20-50%). (5) Enterprise volume commitments ($10K-50K/yr minimum). Always calculate total cost of ownership, not just per-character rate.
Do all TTS tools include commercial rights?
No. SG.ai includes commercial rights on ALL plans including free — unique in the market. ElevenLabs includes commercial on paid plans only. Google Cloud and Amazon Polly include commercial rights. NaturalReader, Speechify, and TTSReader free tiers do NOT include commercial rights. Always verify before publishing commercially.
What's the difference between subscription and pay-per-use?
Subscription (SG.ai $5/mo, ElevenLabs $5/mo): fixed monthly cost, included character quota, predictable budget. Pay-per-use (Google $4-16/M, Polly $4-19/M): pay only for what you use, no commitment, scales linearly. Subscription wins when you use most of your quota monthly. Pay-per-use wins when usage is sporadic or very high volume.
Can I switch TTS tools mid-project?
Technically yes, but it creates voice consistency issues — different tools produce different-sounding audio from the same text. For ongoing projects (podcast series, audiobook series), switching tools means regenerating all previous content or accepting a noticeable voice change. Best practice: choose your tool carefully before starting and stick with it.
Is self-hosted TTS cheaper than API?
Above ~10M characters/month, yes. Self-hosted open-source (F5-TTS, XTTS-v2) on GPU infrastructure costs $20-80 per 1M characters amortized — cheaper than most APIs at scale. Below 10M/month, the infrastructure overhead (GPU rental, monitoring, scaling, fallbacks) isn't worth the savings. See our TTS Technology guide for architecture details.
How do I compare subscription vs. pay-per-use fairly?
Calculate $/1M characters for both. Subscription: (monthly price ÷ included characters) × 1,000,000. Pay-per-use: published rate × 1,000,000. Example: SG.ai Studio ($30/mo, 450K chars) = $67/M chars. Google Cloud Neural = $16/M chars. Google is cheaper per character but SG.ai includes a web interface, commercial rights, and no API setup.
What if my usage varies month to month?
Pay-per-use (Google, Polly) is best for variable usage — you pay only for what you use. Subscription overages vary: SG.ai lets you upgrade/downgrade monthly. ElevenLabs charges per-character overages above your plan limit. For unpredictable usage, start with a subscription that covers your baseline and use pay-per-use for spikes.
Do enterprise contracts offer better pricing?
Yes — typically 30-50% below published rates for annual commitments. But enterprise contracts usually require $10K-50K annual minimums and 12-month commitments. Worth it above ~50M chars/year. Below that, monthly subscriptions are more flexible. Google Cloud and Azure offer the best enterprise volume discounts.
Which tool offers the best free tier for testing?
Google Cloud TTS: 1M characters/month free (best volume, API-only). SG.ai: 10K characters/month free (best features on free — MP3 export + commercial rights). ElevenLabs: 10K characters/month free (best voice quality on free, no commercial rights). For testing before buying: SG.ai if you need to download and use the audio; Google Cloud if you can code and need volume.