UltraGPT
Perceptron: Perceptron Mk1
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...
Intelligence overview
32.8K tok
Context window
8.2K tok
Max output
What Perceptron: Perceptron Mk1 can do.
Reasoning
Extended reasoning
Works through problems step by step before answering, trading latency for accuracy on harder tasks.
Multimodal
Image understanding
Reads and reasons over images alongside text in the same prompt.
Video input
Takes video as an input modality alongside text and images.
Development
Structured output
Returns responses constrained to a JSON schema, ready to parse without cleanup.
Streaming
Streams tokens as they're generated instead of waiting on the full response.
Pay for what you use.
Every model in UltraGPT runs behind one flat subscription — this is the underlying per-token cost the catalog tracks.
$0.15 / 1M tok
$1.5 / 1M tok
Built for serious work.
Build
Generate and refactor code, with the ability to return structured, parseable output.
Think
Works through multi-step problems with extended reasoning before it answers.
Create
Reads images alongside a prompt to ground creative and design work in what's actually on screen.
Ask Perceptron: Perceptron Mk1 anything.
A preview of the real UltraGPT composer — the model you see here is the model you get.
Continues in the UltraGPT app — one login, every model.
How Perceptron: Perceptron Mk1 stacks up.
The closest models in the catalog by provider, capability and score — real entries, pulled from the same directory.
Technical details.
Specification
- Context window
- 32.8K tokens
- Max output
- 8.2K tokens
- Input modalities
- Text + Image + Video
- Output modalities
- Text
- Release date
- May 12, 2026
- Streaming
- Supported
- Tool calling
- Not supported
- JSON mode
- Supported
More from Perceptron, and everything else.
This model is one entry in the full UltraGPT catalog — browse the rest, compare pricing and context windows, or filter by capability.