Claude Sonnet 5 vs Perceptron Mk1 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Claude Sonnet 5 — full profile › · Perceptron Mk1 — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
| Spec | Claude Sonnet 5 | Perceptron Mk1 | Winner |
|---|---|---|---|
| Maker | Anthropic | Perceptron | – |
| Type | Proprietary | Proprietary | – |
| Context window | 1M tokens | 33K tokens | |
| Input price | $2/M | $0.15/M | PEPerceptron Mk1 |
| Output price | $10/M | $1.5/M | PEPerceptron Mk1 |
| Vision / multimodal | Yes | Yes | = Tie |
| Tool / function calling | Yes | No | |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Perceptron Mk1 is ~6.7× cheaper than Claude Sonnet 5 on output tokens ($1.5 vs $10 per M tokens).
| Capability | Claude Sonnet 5 | Perceptron Mk1 |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✓ | ✗ |
| 1M+ context window | ✓ | ✗ |
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
| Criterion | Claude Sonnet 5 | Perceptron Mk1 |
|---|---|---|
| Cost-efficiency | 3.5 | 4.5 |
| Context window | 5.0 | 2.5 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 5.0 | 3.5 |
Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
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...
These variants are tracked but not compared here — one page per family keeps the comparison readable.
Perceptron Mk1 is cheaper on output ($1.5/M vs $10/M).
Claude Sonnet 5 offers the larger context window (1M tokens).
Choose Perceptron Mk1 for the lower output price ($1.5/M vs $10/M). Choose Claude Sonnet 5 if you need the larger 1M context window.
Browse the full open-source model leaderboard, thousands of tools and live benchmarks — all in one place.
Open the leaderboard →