SIDE BY SIDE
Perceptron Mk1 vs Perceptron Mk1.5
Both are Perceptron models. Perceptron Mk1.5 was added to OpenRouter on 2026-09-25, Perceptron Mk1 on 2026-05-12.
| Field | Perceptron Mk1 | Perceptron Mk1.5 |
|---|---|---|
| Provider | Perceptron | Perceptron |
| Family | Perceptron | Perceptron |
| Province | Maple Highlands | Maple Highlands |
| Context window | 33K tokens | 37K tokens |
| Maximum output | 8K tokens | 8K tokens |
| Input / 1M tokens | $0.150 | $0.150 |
| Output / 1M tokens | $1.50 | $1.50 |
| Accepts | text, images, video | text, audio, images, video |
| Produces | text | text |
| Reasoning | Yes | Yes |
| Tool use | No | Yes |
| Added to OpenRouter | 2026-05-12 | 2026-09-25 |
| Model ID | perceptron/perceptron-mk1 | perceptron/perceptron-mk1.5 |
Questions and answers
Which is cheaper, Perceptron Mk1 or Perceptron Mk1.5?
They cost the same: $0.150 per million input tokens and $1.50 per million output tokens.
Which has the larger context window?
Perceptron Mk1.5: 37K tokens against 33K for Perceptron Mk1 (1.1× as long).
What can one do that the other cannot?
Only Perceptron Mk1.5 supports tool use.
Answers are computed from the 2026-10-24 catalog snapshot.