FlagshipWriter

Palmyra X5

Palmyra X5 is Writer's flagship text-only model with a 1.04M token context window, designed for enterprise text processing and long-form content tasks.

Context 1.0M
Tier Flagship
Input from
$0.600 / 1M tokens
across 2 providers
Compare Prices

API Pricing

ProviderInput / 1MOutput / 1MUpdated
Amazon AWS logo
Amazon AWS
$0.600$6.004/5/2026
OpenRouter logo
OpenRouter
$0.600$6.004/14/2026

Prices updated daily. Last check: 4/14/2026

Model Details

General

Creator
Writer
Family
Palmyra
Tier
Flagship
Context Window
1.0M
Modalities
Text

Capabilities

Tool Calling
No
Open Source
No

Strengths & Limitations

  • 1.04M token context window supports processing of very large documents
  • Flagship-tier model with Writer's most advanced capabilities
  • Specialized for enterprise text processing workflows
  • Designed for business and content creation applications
  • Can maintain context across extensive text inputs
  • Optimized for long-form content analysis and generation
  • No tool calling or function execution capabilities
  • Text-only modality with no image or multimodal support
  • Proprietary model with no open-source availability
  • Limited to Writer's API ecosystem
  • No structured output modes beyond standard text generation

Key Features

•1.04M token context window
•Text input and output processing
•Enterprise-focused content generation
•Long-form document analysis
•API access through Writer platform
•Streaming response support
•Batch processing capabilities

About Palmyra X5

Palmyra X5 is Writer's flagship large language model in the Palmyra family, positioned as the company's most capable offering for enterprise applications. As a proprietary model developed by Writer, it represents the top tier of their model lineup focused on business and content creation use cases. The model features an exceptionally large 1.04 million token context window, enabling it to process and analyze extensive documents, codebases, or datasets in a single session. Palmyra X5 is text-only, focusing exclusively on natural language understanding and generation without multimodal capabilities. This specialization allows for optimized performance in text-heavy enterprise workflows. Palmyra X5 is designed for organizations requiring sophisticated text processing capabilities across large document sets. Its massive context window differentiates it from many competing models, making it particularly suitable for applications that need to maintain context across lengthy inputs or perform comprehensive analysis of substantial text corpora.

Common Use Cases

Palmyra X5 is well-suited for enterprise applications requiring analysis of large documents or datasets, such as legal document review, comprehensive content auditing, research synthesis across multiple sources, and long-form report generation. Its massive context window makes it particularly valuable for organizations that need to process entire codebases, policy manuals, or extensive document collections while maintaining full context. The model excels in scenarios where businesses need sophisticated text understanding and generation capabilities across substantial inputs, such as creating executive summaries from multiple lengthy reports or performing detailed content analysis across large corpora.

Frequently Asked Questions

How much does Palmyra X5 cost per million tokens?

Palmyra X5 pricing varies by provider and usage patterns. Check the pricing table above for current rates and any available batch processing discounts.

What is Palmyra X5 best used for?

Palmyra X5 excels at enterprise text processing tasks that require analyzing large documents or datasets, such as legal document review, comprehensive content auditing, research synthesis, and long-form report generation. Its 1.04M token context window makes it particularly valuable for processing entire document collections while maintaining full context.

Does Palmyra X5 support function calling or multimodal inputs?

No, Palmyra X5 does not support function calling or tool execution capabilities. It is also text-only and does not process images or other modalities, focusing exclusively on natural language understanding and generation tasks.