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.

Perceptron Mk1.5Perceptron Remove
Claude Opus 5.5Anthropic Remove
Universal-3.5 ProAssemblyAI Remove
Transcribe 1Fish Audio Remove

4 is the maximum. Remove one to add another.

perceptron-mk1.5 vs claude-opus-5.5 vs universal-3-5-pro vs transcribe-1
Attribute	Perceptron Mk1.5perceptron-mk1.5	Claude Opus 5.5claude-opus-5.5	Universal-3.5 Prouniversal-3-5-pro	Transcribe 1transcribe-1
Pricing
Input	$0.15 / 1M	$4.00 / 1M	$0 / 1M	$0 / 1M
Output	$1.50 / 1M	$20.00 / 1M	$0 / 1M	$0 / 1M
Cache Write (5m)	$0.15 / 1M	$5.00 / 1M	Not applicable	Not applicable
Cache Write (1h)	$0.15 / 1M	$8.00 / 1M	Not applicable	Not applicable
Cache Read	$0.15 / 1M	$0.40 / 1M	Not applicable	Not applicable
Web Search	$0 / 1M	$0 / 1M	$0 / 1M	$0 / 1M
Context
Max context	36.9K	1M	N/A	N/A
Max output	N/A	N/A	N/A	N/A
Capabilities
Vision	No	Yes	No	No
Function Calling	No	Yes	No	No
JSON Mode	No	Yes	No	No
Streaming	Yes	Yes	No	No
Catalogue
Provider	Perceptron	Anthropic	AssemblyAI	Fish Audio
Category	chat	chat	voice	voice
Charge type	Pay As You Go	Pay As You Go	Pay As You Go	Pay As You Go
Released	2026-09-25	—	2026-09-22	2026-07-29
Description
Summary	Perceptron Mk1.5 chat model that accepts audio input. Audio and text input are billed per token.	Claude Opus 5.5 is Anthropic's flagship model for advanced reasoning, coding, and long-horizon agentic workflows, succeeding Opus 5. It excels at multi-step changes across large codebases, code review and bug detection, financial and scientific analysis, and understanding dense charts, diagrams, and screenshots, with stronger grounding when reporting figures and citing sources. Compared with Opus 5, it completes comparable tasks with fewer steps and lower token usage while providing clearer, more concise progress reporting. With adaptive thinking and configurable effort levels, Opus 5.5 can balance reasoning depth, latency, and cost, making it well suited for both demanding autonomous workflows and latency-sensitive professional tasks.	AssemblyAI Universal-3.5 Pro speech-to-text. Billed per second of audio.	Fish Audio Transcribe 1 speech-to-text. Billed per second of audio.