HAIL.SO / DISPATCH · 2026-07-24 · COMPARE
FILE: COMPARE · 6 of 6 slots

side by side.

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01

Large language models

2 models
OpenAI
GPT-4.1
×
OpenAI
GPT-4o
×
Output $/MTok$8.00$10.00
Input $/MTok$2.00$2.50
Cached input $/MTok$0.5000$1.2500
Context window1,047,576128,000
Output cap32,76816,384
Modalitiesin: text, image / out: textin: text, image / out: text
Tool use
Structured output
FamilyGPT-4.1GPT-4o
Knowledge cutoff2024-06-012023-10-01
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗
02

Speech to text

2 models
Speechmatics
Speechmatics Enhanced
×
Speechmatics
Speechmatics Melia 1
×
$/min$0.002150$0.002150
$/min batch
Streaming
Realtime
Languages56+68+
Diarizationincludedincluded
TTFW
Verified2026-07-192026-07-19
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
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗