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Deepslate Opal

DDeepslate Opal
Compare in
on
price not verifiedprice
0.4 sfirst audio?
17.5τ-Voice
—released

Ranking?

Full ranking →
1GPT Live 172.52Grok Voice 3.066.13GPT Realtime 1.551.54Gemini 3.8 Live Extended Thinking505Grok Voice 2.049.7
···
15Gemini 2.5 Flash Native Audio Preview 12 20259.416Deepslate Opal5.817Higgs Realtime5.3

Strong at

C
Speech & Voice#16 of 17

Alternatives?

ModelScoreCostPriceWhat changes
BetterGPT Live 1medium×12.4—$0.05BetterGrok Voice 3.0×11.3—$0.08BetterGrok Voice 2.0unstated×8.5—$0.08BetterGPT Realtime 1.5×8.8——BetterGemini 3.8 Live Extended Thinkinghigh×8.6——

Benchmarks

in Speech & Voice
Big Bench Audio · AA v1.285#16
Full-Duplex-Bench · AA subset v1/v1.585.7#20
Time to first audio · AA0.4#2
τ-Voice · AA · aggregate17.5#16
τ-Voice · AA · airline45.3#13
τ-Voice · AA · retail5.8#16
τ-Voice · AA · telecom1.5#17

FAQ

How much does Deepslate Opal cost?›

There is no per-unit API price: price not verified.

How good is Deepslate Opal, and what is it best at?›

#16 of 17 in Realtime.

Is Deepslate Opal better than Gemini 2.5 Flash Native Audio Preview 12 2025?›

On τ-Voice · AA · retail, Deepslate Opal scores 5.8 vs 9.4 — lower.

What is Deepslate Opal?›

Deepslate Opal is a speech & voice model from Deepslate.

What are the best alternatives to Deepslate Opal?›

GPT Live 1 (better).