GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume, latency-sensitive tasks such as chat, classification, and lightweight agentic workflows, providing capable reasoning for...
Model details →OpenAI: GPT-5.6 Luna vs Perceptron: Perceptron Mk1
OpenAI: GPT-5.6 Luna wins on 4 of 6 axes — pricing and capability skew in its favour for most workloads.
Perceptron Mk1 (Mark One) is Perceptron's highest-quality vision-language model for video and embodied reasoning.** It accepts image and video inputs paired with natural language queries, and produces detailed visual understanding...
Model details →Side-by-side comparison
| Capability | OpenAI: GPT-5.6 Luna | Perceptron: Perceptron Mk1 | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1.1M | 33K | 🏆 OpenAI: GPT-5.6 Luna |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.10 | $0.15 | 🏆 OpenAI: GPT-5.6 Luna |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.60 | $1.50 | 🏆 OpenAI: GPT-5.6 Luna |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | — | 🏆 OpenAI: GPT-5.6 Luna |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is OpenAI: GPT-5.6 Luna better than Perceptron: Perceptron Mk1?
OpenAI: GPT-5.6 Luna wins on 4 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between OpenAI: GPT-5.6 Luna and Perceptron: Perceptron Mk1?
Input: $0.10 vs $0.15 per 1M tokens. Output: $0.60 vs $1.50 per 1M tokens.
What context windows do OpenAI: GPT-5.6 Luna and Perceptron: Perceptron Mk1 support?
OpenAI: GPT-5.6 Luna supports up to 1.1M tokens. Perceptron: Perceptron Mk1 supports up to 33K tokens.
Do both OpenAI: GPT-5.6 Luna and Perceptron: Perceptron Mk1 support tool calling?
OpenAI: GPT-5.6 Luna: yes. Perceptron: Perceptron Mk1: not advertised.
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