Palmyra X5
Released by Writer in 2026, Palmyra X5 is an chat model. Palmyra X5 is Writer's most advanced model, purpose-built for building and scaling AI agents across the enterprise. It delivers industry-leading speed and efficiency on context windows up to 1 million...
by Writer · 1040K token context window
Best for
- low-latency chat and routing
- request routing and triage
- text classification
Ways to use Palmyra X5 in osFoundry
Connect with your own key (BYOK)
Open the key dialog and paste your Writer API key. osFoundry discovers Palmyra X5 automatically — assign it to a Maestro role (router, direct, orchestrator, or fallback) in the Pipeline tab and it is live in every chat. Your key, your provider account — no token markup.
Use it in a Room App
Room Apps declare AI features in their manifest, then call them with invokeAI:
import { invokeAI } from '@osfoundry/app-sdk'
// 'summarize' is an AI feature declared in your app manifest.
const result = await invokeAI('summarize', userText)
Call it from your own apps
Once a model is wired into your workspace you can host it as an API and reach it from your own services, scripts, or CI — outside osFoundry.
Palmyra X5 vs similar models
Licence
Hosted — usage subject to provider terms — Hosted-only model — usage governed by the provider's API terms. Bring your own provider key.
No weights distributed; usage subject to provider terms.
Frequently asked about Palmyra X5
How much does Palmyra X5 cost?
Palmyra X5 is metered at $ 0.600 /1M for input, and $ 6.00 /1M for output. Bring your own Writer API key — osFoundry passes through provider pricing without markup.
Can I use Palmyra X5 commercially?
Commercial use is allowed with conditions. Hosted-only model — usage governed by the provider's API terms. Bring your own provider key. No weights distributed; usage subject to provider terms.
What is the context window of Palmyra X5?
Palmyra X5 supports a 1040K token context window.
Can I run Palmyra X5 locally?
No — Palmyra X5 is hosted only and accessed via the Writer API.
What is Palmyra X5 best at?
Palmyra X5 is well-suited to low-latency chat and routing, request routing and triage, text classification.
How do I use Palmyra X5 in osFoundry?
Paste your Writer API key in the key dialog (or deploy the open weights for self-hostable models), assign Palmyra X5 to a Maestro role in the Pipeline tab, then use it in chat, Room Apps via invokeAI, or your own apps.
Published by Writer on January 21, 2026. Source: https://openrouter.ai/writer/palmyra-x5