← Speech-to-Text 
Speechmatics
Linden 1
Vendor-direct benchmark
Measured 2026-09-22
Build voice agents on Speko →Linden 1 is measured here for comparison — it is not one of the models Speko routes.
WER · batch
—
Streaming-only endpoint
WER · streaming
Read speech
6.17%
Conversation
16.33%
Details
Read speech
n=1541 · FLEURS test+dev+train · vendor-direct
Conversation
14.2–18.9% · EdAcc n=283 · 60 speakers, 2 passes, 2026-10-01
Finalize
395ms
p50–p90 · US East · n=200 · vendor-direct · re-measured 2026-09-23 · ±12%
Time to first token
1.49s
p50–p90 · US East · n=200 · vendor-direct · re-measured 2026-09-23 · ±1%
Cost / min
$0.0027
Speechmatics public Pro list rate, streaming, checked 2026-09-22. https://www.speechmatics.com/pricing
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