# Ultramarine 1 Flash

Ultramarine 1 Flash is an open-weight multimodal reasoning model from Paper Instruments, post-trained from GLM-5.3 Flash for knowledge work in enterprise operations, finance, law, and consulting. It supports long-context document analysis and agentic workflows.

- **Model ID:** `paperinstruments/ultramarine-1-flash`
- **Type:** chat
- **Providers:** fireworks
- **Context window:** 1,048,576
- **Maximum output tokens:** 131,000
- **Pricing:** $0.15/1M input tokens, $0.50/1M output tokens
- **Canonical page:** https://vercel.com/ai-gateway/models/ultramarine-1-flash

## Supported parameters

Detailed capability metadata has not been reported for this model.

## Example

```ts
import { streamText } from 'ai'

const result = streamText({
  model: 'paperinstruments/ultramarine-1-flash',
  prompt: 'Why is the sky blue?'
})
```

## Links

- [Model page](https://vercel.com/ai-gateway/models/ultramarine-1-flash)
- [AI Gateway documentation](https://vercel.com/docs/ai-gateway)
- [Provider model documentation](https://fireworks.ai/models/fireworks/ultramarine-1-flash-us)
- [Provider pricing](https://fireworks.ai/models/fireworks/ultramarine-1-flash-us)


If you encounter incorrect information, can’t find what you need, need a capability Vercel doesn’t currently offer, or have any other feedback to report, please do it by following the instructions at https://vercel.com/feedback.md.