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Writer · Released Apr 28, 2025

Palmyra X5

Reasoning model for deliberate analysis, multi-step problem solving, and tool use.

  • Proprietary
  • Reasoning
  • Tool calling
  • Vision
Capability
—No ECI score yet
Input
$0.60per 1M tokens
Output
$6.00per 1M tokens
Context
1M8K max output
Pricing

What it costs

Input
$0.60per million tokens
Output
$6.00per million tokens
Blended (3:1)
$1.95pricier than 69% of priced models

Typical monthly bills

Monthly usageEstimated cost
Side project2M input + 0.5M output tokens$4.20
Team assistant25M input + 5M output tokens$45.00
Production app250M input + 50M output tokens$450.00

Median of 1 paid API provider on models.dev.

Capability

Independent benchmarks

Epoch AI has not published a Capabilities Index score for Palmyra X5 yet.

Specifications

The details

Lab
Writer
Released
Apr 28, 2025
Context window
1,000,000 tokens
Max output
8,192 tokens
Inputs
Text, Images
Output
Text
Reasoning
Always on
Tool calling
Yes
Structured output
No
Weights
Proprietary
Availability
1 API providerlisted on models.dev
Same lab

More from Writer

Questions

About Palmyra X5

How much does Palmyra X5 cost?

Palmyra X5 costs $0.60 input / $6.00 output per million tokens (median across 1 API provider). At a 3:1 input-to-output mix that is $1.95 per million tokens, more expensive than 69% of the 360 priced models we track.

What is the context window of Palmyra X5?

Palmyra X5 accepts up to 1,000,000 tokens per request and can write up to 8,192 tokens in one response.

How good is Palmyra X5?

Epoch AI has not published a Capabilities Index score for Palmyra X5 yet.

Is Palmyra X5 open source?

No. Palmyra X5 is proprietary; you use it through an API or partner platforms.

What inputs does Palmyra X5 support?

Palmyra X5 accepts text and images and replies in text. It is a reasoning model, supports tool calling.

When was Palmyra X5 released?

Writer released Palmyra X5 on Apr 28, 2025.

What are the best alternatives to Palmyra X5?

The closest current models from other labs on capability, price and release date are QVQ Max (Alibaba (Qwen), $1.20 / $4.80), Magistral Medium (Mistral AI, $2.00 / $5.00), Jamba Large (AI21 Labs, $2.00 / $8.00) and Sonar Deep Research (Perplexity, $2.00 / $8.00).