paperinstruments · Efficient
Ultramarine 1 Flash
Paper Instruments’ reasoning model for writing, knowledge work, and document tasks. Supports image inputs, tools, structured output, and low, high, or max reasoning effort. Reasoning is always enabled.
- Reasoning
- Tools
- Vision
- Structured output
- Parallel tools
- Input
- Text, Images
- Output
- Text
- Reasoning effort
- low · high · max
- Discovery tier
- Efficient
Pricing
USD per 1M tokens- Input
- $0.15
- Output
- $0.50
- Cache read
- $0.03
Reference prices as published by the model provider. API example
Specifications
- Context window
- —
- Max output
- 32.8K
Side by side
Ultramarine 1 Flash compared
Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.
| Ultramarine 1 FlashpaperinstrumentsThis model | Qwen3.8 Omni FlashQwenRemove | |
|---|---|---|
| Provider | paperinstruments | Qwen |
| Discovery tier | Efficient | Efficient |
| Added | Oct 15, 2026 | Sep 17, 2026 |
| Limits | ||
| Context window | — | 991.81K |
| Max output | 32.77K | 131.07KBest |
| Pricing, USD per 1M tokens | ||
| Input | $0.15 | $0.15 |
| Output | $0.50 | $0.47Best |
| Cache read | $0.03 | $0.016Best |
| Performance | ||
| Request success (24h) | 98.2% | 100.0%Best |
| Capabilities | ||
| Reasoning | Yes | Yes |
| Tools | Yes | Yes |
| Vision | Yes | Yes |
| Structured output | Yes | Yes |
| Audio input | No | Yes |
| Video input | No | Yes |
| Parallel tools | Yes | No |
| Reasoning effort | low, high, max | none, high |
Public evaluations
Benchmarks
There are no public benchmark results for these models yet.
Live routing data
Performance and reliability
Recent averages across requests routed for this model. Your own speed depends on prompt length, reasoning effort and load.
- Prompt cache hits
- 76.6%
- About $0.0581 per 1M input tokens with caching
- Request success (24h)
- 98.2%
- Reliable
Cache hits are the share of input tokens recently served from a prompt cache across all requests. They are not a forecast of your own hit rate.
- Healthy (98% or more)
- Degraded (90–98%)
- Down (under 90%)
- No requests
Developers
Use it through the API
Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.
curl https://www.noumen.xyz/api/v1/chat/completions \
-H "Authorization: Bearer $NOUMEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "paperinstruments/ultramarine-1-flash",
"reasoning_effort": "low",
"messages": [{ "role": "user", "content": "Explain this stack trace." }]
}'import os
from openai import OpenAI
client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
model="paperinstruments/ultramarine-1-flash",
messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)