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Model infoModelsSnapshot: 15 Oct 2026

Perplexity / PPLX

PPLX 7B Chat

Historical Perplexity-hosted model identity preserved from its original provider announcement and lifecycle notices.

retiredClosed weightsText generation
Official documentation (opens in a new tab)Reviewed 14 Oct 2026
4 of 18 specification fields collected
Context windowNot collectedAwaiting source review
Maximum outputNot collectedAwaiting source review
Input billingNot collectedPerplexity API (historical)
Output billingNot collectedNo inferred price

Specifications

Provider-documented facts. “Not collected” means we have not verified that field yet, not that the feature is unsupported.

Context / input limit
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Maximum input tokens
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Maximum output
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Parameters
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Architecture
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Languages
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Knowledge cutoff
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Release date
2023-11-29Source for Release date (opens in a new tab)

General-release announcement after alpha access; first alpha date not verified.

Reasoning
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Tool calling
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Structured output
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Streaming
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Batch processing
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Fine-tuning
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Context caching
Not collected

Not verified for this exact historical release. Model names alone are not a numeric context/parameter specification; current Sonar facts are not inherited.

Release identity
pplx-7b-chatSource for Release identity (opens in a new tab)

Provider names both online models and both chat models in its November 2023 general-release announcement.

Access & pricing

Prices belong to an endpoint and billing tier. A provider listing does not guarantee access for every account or region.

Perplexity API (historical)

Provider source (opens in a new tab)
API model ID
pplx-7b-chat

Exact provider-listed historical selector.

Access
Original API selector removed on May 14, 2024.
Regions
Not collected

Endpoint pricing has not been collected. Check the provider for applicable rates.

Data & enterprise terms

Retention, training use, regional processing and enterprise terms have not been summarized for this endpoint.

Caching

Caching can reuse earlier input processing. Availability, lifetime and billing depend on the endpoint. A cache hit still generates a new response.

01 / INITIAL INPUTProcess & retain

The system processes eligible input and retains reusable state.

02 / LATER REQUESTCheck available state

Reuse depends on matching input, session state and the cache policy.

03 / CACHE HITReuse & generate

Reusing state can reduce repeated work. Any charges follow the billing rules below.

Perplexity API (historical)

pplx-7b-chat
Not verified

Historical exact-model cache contract not verified. Current Agent API cache rates are not inherited.

How it works
Not collected

Historical exact-model cache contract not verified. Current Agent API cache rates are not inherited.

Minimum reusable input
Not collected

Historical exact-model cache contract not verified. Current Agent API cache rates are not inherited.

Lifetime & refresh
Not collected

Historical exact-model cache contract not verified. Current Agent API cache rates are not inherited.

How to enable it
Not collected

Historical exact-model cache contract not verified. Current Agent API cache rates are not inherited.

Usage fields
Not collected

Historical exact-model cache contract not verified. Current Agent API cache rates are not inherited.

Billing rules
Not collected

Historical exact-model cache contract not verified. Current Agent API cache rates are not inherited.

Limits & data boundaries
Not collected

Historical exact-model cache contract not verified. Current Agent API cache rates are not inherited.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

Caching reviewed 14 Oct 2026

What the measurements say

No benchmark observations have been added for this model. We do not turn a vendor description into a performance score.

Latency and throughput depend on the host, request size, reasoning settings and load. There is no measured speed or global usage figure in this record.

The record behind the model

Why it is included

Closed-weight distribution inference: the provider distinguishes its own PPLX/Sonar offerings from separately served public instruct models. The exact derivative weights were not found in the reviewed official inventory. This does not claim that public Mistral/Llama base weights are proprietary.

Classification evidence (opens in a new tab)

Lifecycle dates

General release after alpha29 Nov 2023Source (opens in a new tab)
Provider-confirmed API removal14 May 2024Source (opens in a new tab)

Sources reviewed