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Apertis

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. Perceptron Mk1.5PerceptronRemove
  2. Voxtral Mini 3B 2507Mistral AIRemove
  3. S2.1 ProFish AudioRemove
  4. Claude Sonnet 5.5AnthropicRemove

4 is the maximum. Remove one to add another.

perceptron-mk1.5 vs voxtral-mini-3b-2507 vs s2.1-pro vs claude-sonnet-5.5
AttributePerceptron Mk1.5perceptron-mk1.5Voxtral Mini 3B 2507voxtral-mini-3b-2507S2.1 Pros2.1-proClaude Sonnet 5.5claude-sonnet-5.5
Pricing
Input$0.15 / 1M$0 / 1M$0 / 1M$2.00 / 1M
Output$1.50 / 1M$0 / 1M$0 / 1M$10.00 / 1M
Cache Write (5m)$0.15 / 1MNot applicableNot applicable$2.50 / 1M
Cache Write (1h)$0.15 / 1MNot applicableNot applicable$4.00 / 1M
Cache Read$0.15 / 1MNot applicableNot applicable$0.20 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max context36.9KN/AN/A1M
Max outputN/AN/AN/AN/A
Capabilities
VisionNoNoNoYes
Function CallingNoNoNoYes
JSON ModeNoNoNoYes
StreamingYesNoNoYes
Catalogue
ProviderPerceptronMistral AIFish AudioAnthropic
Categorychatvoicevoicechat
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released2026-09-252026-08-132026-07-29—
Description
SummaryPerceptron Mk1.5 chat model that accepts audio input. Audio and text input are billed per token.Mistral AI Voxtral Mini (3B) speech-to-text. Billed per second of audio.Fish Audio S2.1 Pro text-to-speech. Billed per UTF-8 byte of input text.Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, serving as a direct upgrade to Sonnet 5. It excels at feature development, bug fixing, and creating polished documents, presentations, and spreadsheets, while offering clearer writing and communication than its predecessor.