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
Grok 4.20 BetaxAI Remove
GPT-6 LunaOpenAI Remove
Gemini 3.5 TranscribeGoogle Remove

4 is the maximum. Remove one to add another.

perceptron-mk1.5 vs grok-4.20-beta vs gpt-6-luna vs gemini-3.5-transcribe
Attribute	Perceptron Mk1.5perceptron-mk1.5	Grok 4.20 Betagrok-4.20-beta	GPT-6 Lunagpt-6-luna	Gemini 3.5 Transcribegemini-3.5-transcribe
Pricing
Input	$0.15 / 1M	$2.00 / 1M	$0.10 / 1M	— Not priced per input token
Output	$1.50 / 1M	$6.00 / 1M	$0.50 / 1M	— Not priced per output token
Cache Write (5m)	$0.15 / 1M	$2.00 / 1M	$0.10 / 1M	Not applicable
Cache Write (1h)	$0.15 / 1M	$2.00 / 1M	$0.10 / 1M	Not applicable
Cache Read	$0.15 / 1M	$2.00 / 1M	$0.10 / 1M	Not applicable
Web Search	$0 / 1M	$0 / 1M	$0 / 1M	$0 / 1M
Context
Max context	36.9K	2M	1.1M	98.3K
Max output	N/A	N/A	N/A	N/A
Capabilities
Vision	No	Yes	Yes	Yes
Function Calling	No	Yes	Yes	Yes
JSON Mode	No	Yes	Yes	No
Streaming	Yes	Yes	Yes	No
Catalogue
Provider	Perceptron	xAI	OpenAI	Google
Category	chat	chat	chat	voice
Charge type	Pay As You Go	Pay As You Go	Pay As You Go	Pay As You Go
Released	2026-09-25	—	—	2026-09-25
Description
Summary	Perceptron Mk1.5 chat model that accepts audio input. Audio and text input are billed per token.	Grok 4.20 Beta is xAI's newest flagship model, designed for high-performance reasoning with industry-leading speed and strong agentic tool-calling capabilities. It emphasizes strict prompt adherence and low hallucination rates, enabling highly reliable and precise responses across complex tasks. Optimized for agent workflows and real-time applications, Grok 4.20 Beta delivers consistent, truthful outputs while maintaining fast inference and strong task execution reliability.	GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, optimized for high-volume and latency-sensitive workloads such as chat, classification, and lightweight agentic tasks. It combines low-cost, responsive inference with the GPT-6 family’s improvements in factual reliability and clear, concise communication. At higher reasoning effort, GPT-6 Luna can also handle complex software engineering and computer-use workflows that previously required a Sol-tier model, making it a versatile choice for scalable production applications that need to balance speed, cost, and capability.	Google Gemini 3.5 Transcribe speech-to-text. Billed per input and output token.