Home › Compare › Perceptron: Perceptron Mk1 vs Perceptron: Perceptron Mk1.5
Perceptron: Perceptron Mk1 vs Perceptron: Perceptron Mk1.5: API Pricing Compared
Comparing Perceptron: Perceptron Mk1 and Perceptron: Perceptron Mk1.5: on combined input+output list price, Perceptron: Perceptron Mk1 is cheaper at $1.65 vs $1.65 per 1M tokens — a difference of $0 (free) (0%). Perceptron: Perceptron Mk1 costs $0.15 in / $1.5 out with a 32,768-token context; Perceptron: Perceptron Mk1.5 costs $0.15 in / $1.5 out with a 36,864-token context.
| Perceptron: Perceptron Mk1 | Perceptron: Perceptron Mk1.5 | |
|---|---|---|
| Input /1M | $0.15 | $0.15 |
| Output /1M | $1.5 | $1.5 |
| Cached input /1M | — | — |
| Context window | 32,768 | 36,864 |
| Max output tokens | 8,192 | 8,192 |
| Cost @ 10M in + 2M out / mo | $4.5 | $4.5 |
Estimate your own workload in the cost calculator, or open the full pages for Perceptron: Perceptron Mk1 and Perceptron: Perceptron Mk1.5.
Frequently asked questions
Which is cheaper, Perceptron: Perceptron Mk1 or Perceptron: Perceptron Mk1.5?
Perceptron: Perceptron Mk1 is cheaper on combined list price: $1.65 vs $1.65 per 1M tokens (input + output). At 10M input + 2M output tokens per month, Perceptron: Perceptron Mk1 costs $4.5 and Perceptron: Perceptron Mk1.5 costs $4.5.
Which has the larger context window, Perceptron: Perceptron Mk1 or Perceptron: Perceptron Mk1.5?
Perceptron: Perceptron Mk1 has a context window of 32,768 tokens; Perceptron: Perceptron Mk1.5 has 36,864 tokens. The larger one is Perceptron: Perceptron Mk1.5.
Price snapshot October 21, 2026, refreshed daily.