Ultramarine 1 Flash

fireworks/ultramarine-1-flash is Paper Instruments' multimodal model for knowledge work in enterprise operations, finance, law and consulting. It is built on GLM 5.3 Flash (320B total, 18B active MoE), has a 1,048,576-token context window, takes text and image input, and answers in text with reasoning and streaming. Function calling is not supported. The list rate is $0.225 per million input tokens and $0.75 per million output tokens.

import { createAnyRouter } from "@anyr/ai-sdk-provider"
import { generateText } from "ai"

const anyrouter = createAnyRouter()
const { text } = await generateText({
  model: anyrouter("fireworks/ultramarine-1-flash"),
  prompt: "Summarize the termination clauses in this contract.",
})
console.log(text)

curl -fsSL https://anyrouter.dev/setup.sh | bash
anyr login
anyr claude --model "fireworks/ultramarine-1-flash"

Ultramarine 1 Flash is BYOK-only. Add a key under Dashboard → BYOK; AnyRouter charges nothing for a BYOK route and your provider bills you at its own rate.

Playbooks: AI SDK, OpenAI SDK, coding agents, playground.