Skip to content
Not available in this workspace
OpenRouterOpenRouter
© 2026 OpenRouter, Inc

Product

  • Chat
  • Rankings
  • Benchmarks
  • Apps
  • Discover
  • Models
  • Collections
  • Providers
  • Pricing
  • Enterprise
  • Labs

Company

  • About
  • Blog
  • Careers
    Hiring
  • Privacy
  • Terms of Service
  • Support
  • Works With OR
  • Data

Developer

  • Documentation
  • API Reference
  • Developer Platform
  • Status

Connect

  • Discord
  • GitHub
  • LinkedIn
  • X
  • YouTube
Favicon for perplexity

Perplexity: R1 1776

perplexity/r1-1776

Model weights

R1 1776 is a version of DeepSeek-R1 that has been post-trained to remove censorship constraints related to topics restricted by the Chinese government. The model retains its original reasoning capabilities while providing direct responses to a wider range of queries. R1 1776 is an offline chat model that does not use the perplexity search subsystem.

The model was tested on a multilingual dataset of over 1,000 examples covering sensitive topics to measure its likelihood of refusal or overly filtered responses. Evaluation Results(opens in new tab) Its performance on math and reasoning benchmarks remains similar to the base R1 model. Reasoning Performance(opens in new tab)

Read more on the Blog Post(opens in new tab)

Modalities

Context

128K

Released

Feb 19, 2025

About Perplexity: R1 1776

OpenRouter makes Perplexity: R1 1776 available through a unified, OpenAI-compatible API using the model ID perplexity/r1-1776.

Perplexity: R1 1776 accepts text and returns text. It has a 128,000-token context window.

It was released on February 19, 2025.

More models from Perplexity

  • Embed V1 4B
  • Embed V1 0.6B
  • Sonar Pro Search

Frequently asked questions

R1 1776 is a version of DeepSeek-R1 that has been post-trained to remove censorship constraints related to topics restricted by the Chinese government. The model retains its original reasoning capabilities while providing direct responses to a wider range of queries. R1 1776 is an offline chat model that does not use the perplexity search subsystem.

R1 1776 has a 128,000 token context window.

Sonar Pro Search, Sonar Reasoning Pro, Sonar Pro and 2 more are other text models from Perplexity.

R1 1776 was released on February 19, 2025.

ActivityFAQ

Activity

Token volume and request traffic to this model over time.