Unlimited Open Source Models

Get Plan
Skip to main content

Writer: Palmyra X5

Writer: Palmyra X5

Choose a prompt below to get started or type your own message

Looking for something different?

Models that trade off differently against the one you are viewing

Better quality

Newer flagship models that generally produce stronger results.

Lower cost per run

Open-source models we host, unlimited on the $149/month plan.

About 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...

Technical Specifications

Model ID
writer-palmyra-x5
Category
LLM Models
Task
Text Generation
Price
$3.3 per million tokens
Added
February 20, 2026

Key Features

  • Chat completion and multi-turn conversation API
  • Streaming response with token-by-token output
  • Function calling and tool use support
  • System prompts and role-based messaging
  • JSON mode and structured output

Quick Start

Integrate Writer: Palmyra X5 into your application with a single API call. Get your API key from the pricing page to get started.

import requests
import json
url = "https://modelslab.com/api/v7/llm/chat/completions"
headers = {
"Content-Type": "application/json"
}
data = {
"model_id": "writer-palmyra-x5",
"messages": [
{
"role": "user",
"content": "Hello!"
}
],
"max_tokens": 1000,
"key": "YOUR_API_KEY"
}
try:
response = requests.post(url, headers=headers, json=data)
response.raise_for_status() # Raises an HTTPError for bad responses (4XX or 5XX)
result = response.json()
print("API Response:")
print(json.dumps(result, indent=2))
except requests.exceptions.HTTPError as http_err:
print(f"HTTP error occurred: {http_err} - {response.text}")
except Exception as err:
print(f"Other error occurred: {err}")

Pricing

Writer: Palmyra X5 API costs $3.3 per million tokens. Plans start at $21/month, and open-source models are unlimited on the $149/month plan. View pricing plans

Use Cases

  • AI chatbots and virtual assistants
  • Code generation and developer tools
  • Content writing and copywriting automation
  • Data analysis, summarization, and extraction

Writer: Palmyra X5 FAQ

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...

You can integrate Writer: Palmyra X5 into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "writer-palmyra-x5" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation.

Writer: Palmyra X5 costs $3.3 per million tokens. ModelsLab plans start at $21/month (Basic), and the $149/month Open Source plan includes unlimited generation on open-source models.

The model ID for Writer: Palmyra X5 is "writer-palmyra-x5". Use this ID in your API requests to specify this model.

Yes. ModelsLab is subscription-based with no free tier — plans start at $21/month (Basic, 3,250 API calls). The $149/month Open Source Unlimited plan includes unlimited generation across open-source models; premium third-party models are billed per call from your wallet.