HAIL.SO / DISPATCH · 2026-07-12 · COMPARE
FILE: COMPARE · 6 of 6 slots

side by side.

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01

Large language models

2 models
Perplexity
Sonar
×
OpenAI
GPT-4o
×
Output $/MTok$1.00$10.00
Input $/MTok$1.00$2.50
Cached input $/MTok$1.2500
Context window128,000128,000
Output cap8,00016,384
Modalitiesin: text / out: textin: text, image / out: text
Tool use
Structured output
FamilySonarGPT-4o
Knowledge cutoff2023-10-01
Verified2026-07-022026-07-02
Sourceprovider page ↗provider page ↗
02

Speech to text

2 models
Rev.ai
Rev.ai Reverb
×
Soniox
Soniox STT Async v4
×
$/min$0.003300$0.001670
$/min batch
Streaming
Realtime
Languagesen60+
Diarizationincludedincluded
TTFW
Verified2026-07-022026-07-02
Sourceprovider page ↗provider page ↗
03

Text to speech

2 models
Cartesia
Sonic 2
×
Smallest.ai
Lightning v3.1
×
$/1M chars$50.00$17.50
Voice qualityneuralneural
Voice cloning✓ included✓ included
Voice count217
Languagesen, fr, de, es, pt, zh, ja, koen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, or
SSML support
TTFB90ms200ms
Output formatspcm, mp3, wav, ulaw, alaw
Verified2026-07-022026-07-02
Sourceprovider page ↗provider page ↗