Writer: Palmyra X5

writer/palmyra-x5

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...

Modalities

In / out price

$0.6 / $6 per 1M

Context

1.04M

Released

Jan 21, 2026

Why use Palmyra X5

Very long context: whole books or codebases in one prompt

Pricing

Input	$0.6 / 1M tokens
Output	$6 / 1M tokens

List prices via OpenRouter, checked daily. Real cost depends on the provider and on reasoning tokens.

Cost calculator

Pick a task, set how often you run it, and compare what it costs on each model.

TaskInput tokens≈ 602 wordsOutput tokens≈ 1,504 wordsRuns per month

Input served from cache: 0%Repeated prompts (same instructions or document) are billed at the cheaper cache-read price where the model supports it.

Model	Per run	Per month	Per 1,000 runs
Writer: Palmyra X5	$0.012	$12.48	$12.48

Estimates from list prices via OpenRouter; real bills vary by provider and reasoning tokens.

Will it fit? Context window simulator

Each square is about one page (500 words). Colored squares are your content; grey squares are free space in the model's context window.

Your content

Novel (90,000 words)

Total: about 120,000 tokens (≈ 90,226 words). Token counts are estimates.

Models

Zoom (square size): 6pxZoom out to see a whole million-token window at once.

Writer: Palmyra X5

1,040,000 tokens ≈ 1,564 pages

Fits: uses 12% of the window (room for 8× this much).

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