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
OpenAI
GPT-4o
×
Perplexity
Sonar
×
Output $/MTok$10.00$1.00
Input $/MTok$2.50$1.00
Cached input $/MTok$1.2500
Context window128,000128,000
Output cap16,3848,000
Modalitiesin: text, image / out: textin: text / out: text
Tool use
Structured output
FamilyGPT-4oSonar
Knowledge cutoff2023-10-01
Verified2026-07-022026-07-02
Sourceprovider page ↗provider page ↗
02

Speech to text

2 models
Microsoft Azure
Azure Speech (Batch)
×
Speechmatics
Speechmatics Enhanced
×
$/min$0.006000$0.002150
$/min batch
Streaming
Realtime
Languages100+56+
Diarizationincludedincluded
TTFW
Verified2026-05-19stale 54d2026-07-02
Sourceprovider page ↗provider page ↗
03

Text to speech

2 models
Smallest.ai
Lightning v3.1
×
Deepgram
Deepgram Aura 2
×
$/1M chars$17.50$30.00
Voice qualityneuralneural
Voice cloning✓ included
Voice count217
Languagesen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, oren, es, de, fr, nl, it, ja
SSML support
TTFB200ms
Output formatspcm, mp3, wav, ulaw, alawwav, mp3, linear16, mulaw, alaw, opus
Verified2026-07-022026-07-02
Sourceprovider page ↗provider page ↗