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Writer: Palmyra X5

Source description (English)

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...

Overview

Model specifications

Context
1,040,000 tokens
Maximum output
8,192 tokens
Architecture
text->text
Tokenizer
Other
Knowledge cutoff
Not provided
Moderated
Yes
OPENROUTER

Complete pricing

Synchronized OpenRouter rates. Token prices are shown per one million tokens.

Input
$0.6
per 1M tokens
Output
$6
per 1M tokens
API

Quick start

Set OPENROUTER_API_KEY locally. Python requires requests; JavaScript runs in Node.js. Keep the key on the server.

API documentation

curl --fail-with-body https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"writer/palmyra-x5","messages":[{"role":"user","content":"Hello!"}]}'
Capabilities

InputOutput

Input
text
Output
text
API

Supported API parameters

max_tokensstoptemperaturetop_ktop_p
Available providers

1 Provider

Checked: September 7, 2026

Live providers on OpenRouter

Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.

OpenRouter

Amazon Bedrock

Not provided
Context
1.0M
Maximum output
8K
Input
$0.6
Output
$6
Cache read
Not provided
Cache write
Not provided