GPT-4 vs Perceptron Mk1.5 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
GPT-4 — full profile › · Perceptron Mk1.5 — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
| Spec | GPT-4 | Perceptron Mk1.5 | Winner |
|---|---|---|---|
| Maker | OpenAI | Perceptron | – |
| Type | Proprietary | Proprietary | – |
| Context window | 8K tokens | 37K tokens | PEPerceptron Mk1.5 |
| Input price | $30/M | $0.15/M | PEPerceptron Mk1.5 |
| Output price | $60/M | $1.5/M | PEPerceptron Mk1.5 |
| Vision / multimodal | No | Yes | PEPerceptron Mk1.5 |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Perceptron Mk1.5 is ~40× cheaper than GPT-4 on output tokens ($1.5 vs $60 per M tokens).
| Capability | GPT-4 | Perceptron Mk1.5 |
|---|---|---|
| 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 | GPT-4 | Perceptron Mk1.5 |
|---|---|---|
| Cost-efficiency | 2.0 | 4.5 |
| Context window | 2.0 | 2.5 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 3.5 | 5.0 |
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.
OpenAI's flagship model, GPT-4 is a large-scale multimodal language model capable of solving difficult problems with greater accuracy than previous models due to its broader general knowledge and advanced reasoning...
Perceptron Mk1.5 is Perceptron's embodied reasoning model for physical agents. It accepts text, image, video, and audio input, and answers with text plus optional structured annotations: points, boxes, polygons, tracks,...
Perceptron Mk1.5 is cheaper on output ($1.5/M vs $60/M).
Perceptron Mk1.5 offers the larger context window (37K tokens).
Choose Perceptron Mk1.5 for the lower output price ($1.5/M vs $60/M). It also gives you the larger 37K context window.
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