Writer: Palmyra X5

writer/palmyra-x5

Released Jan 21, 20261,040,000 context

$0.60/M input tokens$6/M output tokens

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 tokens, powered by a novel transformer architecture and hybrid attention mechanisms. This enables faster inference and expanded memory for processing large volumes of enterprise data, critical for scaling AI agents.

Providers for Palmyra X5

OpenRouter routes requests to the best providers that are able to handle your prompt size and parameters, with fallbacks to maximize uptime.

Performance for Palmyra X5

Compare different providers across OpenRouter

Effective Pricing for Palmyra X5

Actual cost per million tokens across providers over the past hour

Apps using Palmyra X5

Top public apps this month

Recent activity on Palmyra X5

Total usage per day on OpenRouter

Prompt

5.64M

Completion

216K

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.

Uptime stats for Palmyra X5

Uptime stats for Palmyra X5 across all providers

Sample code and API for Palmyra X5

OpenRouter normalizes requests and responses across providers for you.

OpenRouter provides an OpenAI-compatible completion API to 300+ models & providers that you can call directly, or using the OpenAI SDK. Additionally, some third-party SDKs are available.

In the examples below, the OpenRouter-specific headers are optional. Setting them allows your app to appear on the OpenRouter leaderboards.

Using third-party SDKs

For information about using third-party SDKs and frameworks with OpenRouter, please see our frameworks documentation.

See the Request docs for all possible fields, and Parameters for explanations of specific sampling parameters.

Palmyra X5 - API Pricing & Providers | OpenRouter