HAIL.SO / DISPATCH · 2026-07-22 · COMPARE
FILE: COMPARE · 6 of 6 slots

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01

Large language models

3 models
Perplexity
Sonar
×
OpenAI
GPT-5.4 Pro
×
xAI
Grok 4.5
×
Output $/MTok$1.00$180.00$6.00
Input $/MTok$1.00$30.00$2.00
Cached input $/MTok$0.3000
Context window128,0001,050,000500,000
Output cap8,000128,000500,000
Modalitiesin: text / out: textin: text, image / out: textin: text, image / out: text
Tool use
Structured output
FamilySonarGPT-5.4Grok 4
Knowledge cutoff2025-08-312026-02-01
Verified2026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗
02

Speech to text

2 models
Speechmatics
Speechmatics Enhanced
×
Rev.ai
Rev.ai Reverb
×
$/min$0.002150$0.003300
$/min batch
Streaming
Realtime
Languages56+en
Diarizationincludedincluded
TTFW
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗
03

Text to speech

1 model
Cartesia
Sonic 3
×
$/1M chars$50.00
Voice qualityneural
Voice cloning✓ included
Voice count
Languages42+
SSML support
TTFB
Output formats
Verified2026-07-19
Sourceprovider page ↗