PPLX Models by Perplexity Labs

Perplexity LabsProprietaryHighlight
Perplexity Labs releases · 7 in the last 12 monthsChangelog →
This model family is considered obsolete. Consider newer alternatives in Related Model Families below.
7 models2023–2024Up to 32K ctx

Last refreshed 2026-10-20. Next refresh: weekly.

Details

ResearcherPerplexity Labs
LicenseProprietary
Commercial useRestricted
Models7
Released2023–2024
Max context32K

Links

Website

About

The PPLX family of large language models by Perplexity AI is designed to tackle the challenges of traditional LLMs, such as dealing with outdated information and ensuring response accuracy. It features the core models pplx-7b-online and pplx-70b-online, which have 7 billion and 70 billion parameters, respectively 125. These models can access real-time data from the internet, enabling them to generate responses that are both current and factual 156. Building on open-source models like mistral-7b and llama2-70b, Perplexity's unique fine-tuning and search technology enhance these LLMs' efficacy 156. Evaluations indicate these models yield performance on par with or even surpassing prominent models like GPT-3.5 and Llama 2 in delivering precise and timely answers 157. Additional offerings include the pplx-7b-chat and pplx-70b-chat models, available via API and the Labs platform 156.

Decision facts

Best fit
General model comparison
Capability starting point
pplx-embed-v1
Lowest tracked input
Not tracked
Closest related family
Ember

Current Variants

Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.

1 in view6 retired

Use when the workload needs 4B parameters.

2024-054B parameters

Release Timeline

2 release groups
2024-05
1 current
pplx-embed-v1
4B parameters
Current
2023-11
6 retired
PPLX 70B Chat
16K context70B parameters
Archived
PPLX 70B Online
16K context70B parameters
Archived
PPLX 7B Chat
16K context7B parameters
Archived
PPLX 7B Online
16K context7B parameters
Archived
PPLX 8x7B Chat
32K context
Archived
PPLX 8x7B Online
32K context
Archived

Specifications(7 models)

PPLX model specifications comparison
ModelReleasedContextParameters
pplx-embed-v12024-05—4B

Models(7)