← Speech-to-Text
Cartesia
Ink-2
Measured 2026-10-01
Run Ink-2 on Speko →One API, every model on this board.
WER · batch
11.0%
WER · streaming
Read speech
10.12%
Conversation
16.68%
Details
Read speech
n=1541 · FLEURS test+dev+train · vendor-direct
Conversation
14.6–19.1% · EdAcc n=283 · 60 speakers, 2 passes, 2026-10-01
Finalize
587ms
p50–p90 · US East · n=200 · vendor-direct · pre-close (99/100 flush-forced) · ±34%
Time to first token
1.78s
p50–p90 · US East · n=200 · vendor-direct · ±10%
Cost / min
$0.0090
3 credits per second at the Pro included rate ($5 for 100K credits), the cheapest paid plan; $0.0071 at Startup, $0.0067 at Scale.
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https://speko.ai/benchmarks/stt/cartesia-ink-2