audio model comparison
AssemblyAI-TTS-1 vs Voxtral Mini TTS 3
AssemblyAI-TTS-1 and Voxtral Mini TTS 3 are both current audio models, from AssemblyAI and Mistral AI. Voxtral Mini TTS 3 is 13% cheaper per character than AssemblyAI-TTS-1, $0.000013 vs $0.000015. On Artificial Analysis Speech Arena, AssemblyAI-TTS-1 scores 1221 Elo and Voxtral Mini TTS 3 1218 Elo (Artificial Analysis, measured November 3, 2026).
- Higher Artificial Analysis Speech Arena
- AssemblyAI-TTS-11221 Elo against 1218 Elo
- Lower price per character
- Voxtral Mini TTS 3$0.000013 against $0.000015
- Newer release
- AssemblyAI-TTS-1Oct 2026 against Oct 2026
Data verified November 3, 2026 · Dataset 2026-11-03
Side by side
AssemblyAI-TTS-1 and Voxtral Mini TTS 3, line by line
Prices in effect today, compared at the same tier wherever both list one. The better value in each row is highlighted.
| Fact | AssemblyAI-TTS-1 | Voxtral Mini TTS 3 |
|---|---|---|
| Price | ||
| Price per character | $0.000015 | $0.000013 (better) |
| Independent benchmarks | ||
| Artificial Analysis Speech Arena | 1221 Elo (#6 of 13) (better) | 1218 Elo (#7 of 13) |
| Specs | ||
| Provider | AssemblyAI | Mistral AI |
| Release date | October 28, 2026 | October 20, 2026 |
| Access | API only | API only |
| Context window | Not reported | Not reported |
| Max output | Not reported | Not reported |
| Input | text | text |
| Output | audio | audio |
Charts
Against every current audio model
Where AssemblyAI-TTS-1 and Voxtral Mini TTS 3 land among the current models of their task, on every independent benchmark, on price and on context.
Where each stands
On Artificial Analysis Speech Arena, AssemblyAI-TTS-1 ranks #6 and Voxtral Mini TTS 3 #7 of 13 current models. Each bar is the share of current models it beats: on score, price and context.
Independent benchmarks
Artificial Analysis Speech Arena
AssemblyAI-TTS-1:#6of 13
1,221 Elo · ahead of 58%
Voxtral Mini TTS 3:#7of 13
1,218 Elo · ahead of 50%
Price and context
Price per character
AssemblyAI-TTS-1:#2of 11
$0.000015 · cheaper than 70%
Voxtral Mini TTS 3:#1of 11
$0.000013 · cheaper than 100%
Cost
What each costs
Example workloads at each provider's listed rates, then every other rate either one lists. The cheaper figure in each row is highlighted.
The same work, priced
For 1M characters, AssemblyAI-TTS-1 costs 1.2 times as much as Voxtral Mini TTS 3, at each provider's listed rates.
1M characters
AssemblyAI-TTS-1 costs 1.2× as much
- AssemblyAI-TTS-1
- $15
- Voxtral Mini TTS 3
- $13
| Workload or rate | AssemblyAI-TTS-1 | Voxtral Mini TTS 3 |
|---|---|---|
| Example workloads | ||
| 1M characters | $15 | $13 (better) |
Your own bill will differ. These figures use list prices and example workloads. The AI Model Cost Audit reviews your real usage, shortlists models that score as well for each task for less, and estimates the savings.
Launch price $100, regular price $150
Verdict
When to choose each
AssemblyAI-TTS-1
Where it leads
- Higher Artificial Analysis Speech Arena score, 1221 Elo vs 1218 Elo
Best for
- Voice agents on live phone calls
- High-volume speech where the cost per character matters
Watch out for
- Six languages at launch; AssemblyAI says more languages and accents will follow
- No fine-tuned (Pro) voice cloning, pronunciation dictionaries or emotion tags at launch
- The head-to-head figures in the launch post are AssemblyAI tests
Voxtral Mini TTS 3
Where it leads
- Lower price per character, $0.000013 vs $0.000015
Best for
- Multilingual voice agents and narration
- Branded voices cloned from recorded samples
Watch out for
- Language coverage is unclear: the launch post says 35+ languages and 50+ dialects, while the model page lists nine
- Released as a public preview, so behaviour and pricing may change
From benchmark to production
Building on AssemblyAI-TTS-1 or Voxtral Mini TTS 3?
Public scores rarely hold on your own data. We test both models on your real tasks, then build the agent or pipeline around the one that wins.
AI Model Cost AuditLaunch price $100, regular price $150What the audit includes
FAQ
AssemblyAI-TTS-1 vs Voxtral Mini TTS 3 FAQ
Which is cheaper, AssemblyAI-TTS-1 or Voxtral Mini TTS 3?
Voxtral Mini TTS 3 is 13% cheaper per character than AssemblyAI-TTS-1, $0.000013 vs $0.000015.
How much would 1M characters cost with AssemblyAI-TTS-1 or Voxtral Mini TTS 3?
1M characters comes to $15 with AssemblyAI-TTS-1 and $13 with Voxtral Mini TTS 3 at their listed rates.
Which scores higher on independent benchmarks, AssemblyAI-TTS-1 or Voxtral Mini TTS 3?
AssemblyAI-TTS-1 leads on Artificial Analysis Speech Arena, 1221 Elo to 1218 Elo. Scores are independent evaluations, not either vendor's launch figures.
Further reading
More on AssemblyAI-TTS-1 and Voxtral Mini TTS 3
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Production evaluation
Choosing between AssemblyAI-TTS-1 and Voxtral Mini TTS 3?
Public benchmarks narrow the shortlist. We run both on your own tasks, data and cost limits, then build the routing and review controls to run the winner in production.
- A head-to-head evaluation on your real workload
- Routing between models by cost and difficulty