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Model infoModelsSnapshot: 15 Oct 2026

Rev AI / Managed text analysis

Rev Topic Extraction

Managed transcript analysis that extracts topics already present in the input and returns supporting spans with scores.

availableClosed weightsText analysisTopic extraction
Official documentation (opens in a new tab)Reviewed 13 Oct 2026
6 of 19 specification fields collected
Text input limit14,000 wordsSee specification notes below
Languages1 listedFull language list in specifications
Input billingSee ratesRev AI API
Output billingSee ratesPublished units and conditions below

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
Maximum output
Not collected
Output modalities
Topics and scoresSource for Output modalities (opens in a new tab)
Reasoning
Not collected
Tool calling
Not collected
Structured output
Not collected
Streaming
Not collected
Batch processing
Not collected
Fine-tuning
Not collected
Knowledge cutoff
Not collected
Release date
Not collected
Parameters
Not collected
Architecture
Not collected
Context caching
Not collected
Required request fields
Plain text or Rev transcript JSON; JSON input can preserve timestamps in resultsSource for Required request fields (opens in a new tab)
What scores mean
Topic relevance score 0–1, with supporting informant spans. Topic names are drawn from input content.Source for What scores mean (opens in a new tab)

Access & pricing

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

API model ID
Not collected

No public standalone model/checkpoint selector; API version numbers are not model generations.

Access
Submit a standalone asynchronous transcript analysis job; no transcription job is required when text is supplied.
Regions
US deployment
API endpoint URL
https://api.rev.ai/topic_extraction/v1/jobsSource for API endpoint URL (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 13 Oct 2026
CategoryUsageRateUnit
Text analysisTopic extraction1$0.000810 words

Rate conditions

  1. Current public word-based tariff. Word metering is not text-token billing; no unverified rounding rule or minimum is inferred.
Pricing source (opens in a new tab)

Data & enterprise terms

API jobs and associated files are retained for at most 30 days, with account/job deletion controls and manual deletion. An accounting record remains. Rev terms permit continuous training of its own ASR/AI models on speech-service content, while excluding generative-AI training. The security page’s external-LLM exclusion is not a universal no-training promise.

Read the service policy (opens in a new tab)

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.

Rev AI API

Not verified

No model-specific discounted prompt-cache contract collected. Stored transcripts, reusable vocabularies and streaming sessions do not establish prompt caching.

How it works
Not collected

No model-specific discounted prompt-cache contract collected. Stored transcripts, reusable vocabularies and streaming sessions do not establish prompt caching.

Minimum reusable input
Not collected

No model-specific discounted prompt-cache contract collected. Stored transcripts, reusable vocabularies and streaming sessions do not establish prompt caching.

Lifetime & refresh
Not collected

No model-specific discounted prompt-cache contract collected. Stored transcripts, reusable vocabularies and streaming sessions do not establish prompt caching.

How to enable it
Not collected

No model-specific discounted prompt-cache contract collected. Stored transcripts, reusable vocabularies and streaming sessions do not establish prompt caching.

Usage fields
Not collected

No model-specific discounted prompt-cache contract collected. Stored transcripts, reusable vocabularies and streaming sessions do not establish prompt caching.

Billing rules
Not collected

No model-specific discounted prompt-cache contract collected. Stored transcripts, reusable vocabularies and streaming sessions do not establish prompt caching.

Limits & data boundaries
Not collected

No model-specific discounted prompt-cache contract collected. Stored transcripts, reusable vocabularies and streaming sessions do not establish prompt caching.

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

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

Rev reserves its proprietary services and model technology and prohibits copying or reverse engineering. This record covers legacy proprietary ASR or an explicitly labeled managed API family/option whose internal checkpoint is not published. The separately downloadable English Reverb ASR and diarization releases are excluded; API billing alone is not proof of closed weights.

Classification evidence (opens in a new tab)

Lifecycle dates

Open beta documentation published7 Dec 2021Source (opens in a new tab)
API reached general availability21 May 2022Source (opens in a new tab)

Sources reviewed