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Compare models

Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

  1. Universal-3.5 ProAssemblyAIRemove
  2. Gemini 3.5 TranscribeGoogleRemove
  3. Speech 2.8 HDMiniMaxRemove
universal-3-5-pro vs gemini-3.5-transcribe vs speech-2.8-hd
AttributeUniversal-3.5 Prouniversal-3-5-proGemini 3.5 Transcribegemini-3.5-transcribeSpeech 2.8 HDspeech-2.8-hd
Pricing
Input$0 / 1M$0 / 1M$0 / 1M
Output$0 / 1M$0 / 1M$0 / 1M
Cache Write (5m)Not applicableNot applicableNot applicable
Cache Write (1h)Not applicableNot applicableNot applicable
Cache ReadNot applicableNot applicableNot applicable
Web Search$0 / 1M$0 / 1M$0 / 1M
Context
Max contextN/A98.3KN/A
Max outputN/AN/AN/A
Capabilities
VisionNoYesNo
Function CallingNoYesNo
JSON ModeNoNoNo
StreamingNoNoNo
Catalogue
ProviderAssemblyAIGoogleMiniMax
Categoryvoicevoicevoice
Charge typePay As You GoPay As You GoPay As You Go
Released2026-09-222026-09-252026-07-16
Description
SummaryAssemblyAI Universal-3.5 Pro speech-to-text. Billed per second of audio.Google Gemini 3.5 Transcribe speech-to-text. Billed per input and output token.MiniMax Speech 2.8 HD text-to-speech. Billed per input character; each Chinese (Han) character counts as 2.