Introducing Simba 3.5
Spoken like a local in 48 languages. Expressive text-to-speech and voice cloning, through one API.
Looking for the Speechify reading app? It lives at speechify.com
72ms
Simba 3.5's time to first audio for 95% of streaming requests, under production load
The Simba 3.5 fact sheet's English results against Simba 3.2, as of October 2026. A 95th percentile under production load, not a median or a guarantee.
Read the fact sheetList price $15 launch price $10/ 1M
Per million characters of Simba 3.5 on Starter, launch price until 21 Nov
Double usage on the fee, in one shared monthly balance, not a separate character allowance: it buys 2M characters of Simba 3.5 until 21 Nov 2026, 1.3M after1.3M characters of Simba 3.5, or 2M characters of Simba 3.0 and 3.2. Continued usage draws from your top-up balance.
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Artificial Analysis Speech Arena
Elo score and 95% confidence interval
The top ten of 96 provider voices. Bars show each model's 95% confidence interval; Simba 3.2's overlaps the models around it.
Inspect the dated figuresArtificial Analysis runs blinded pairwise listening tests. Simba 3.2 scored 1,244 Elo with a 95% confidence interval of ±13 on the dated board of 96 models, with the lowest Artificial Analysis price in its top ten. Its interval overlaps the models around it, so the result does not establish a guaranteed quality advantage.
The economics view compares the board's top ten by Elo. The dated figures are SpeechifyAI's reviewed transcription, not an official AA export.
Production US East
Streaming response
Time to first audio byte on our production path
Measured first-byte latency, not audible latency, end-to-end agent response time, or a cross-vendor benchmark.
These figures measure our Simba 3.2 production streaming path in US East from request to the first audio byte. Network distance, input length, client buffering, and the boundary a benchmark chooses can all change the result.
Time to first byte and time to first audible sound are different measurements. We publish this as a dated production observation, not a guarantee or an independent claim that every route is fastest.
The board's top ten
The board's top ten, compared on one cost model
USD per 1M characters, zero-based scale
AA-normalized estimates for the top ten of the 13 Oct 2026 board. Subscription assumptions apply. Not a quote or total monthly bill.
Inspect the dated figuresArtificial Analysis normalizes API pricing to an estimated per-character measure. For subscriptions, it uses the lowest-cost annual plan with at least 1M characters and assumes 80% usage. This chart compares only the board's top ten by Elo.
The $6.60 figure is that independent model, not a SpeechifyAI billed rate. Our current subscription fees, included usage, and subsequent usage rates are published separately.