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Model infoModelsSnapshot: 15 Oct 2026

Addis AI / Addis hosted AI APIs

Addis Aleph-Audio / Voice 1

Deprecated language-selected speech synthesis with Base64 WAV and newline-delimited audio streaming.

deprecatedClosed-source managed componentText-to-speech
Official documentation (opens in a new tab)Reviewed 16 Oct 2026
5 of 19 specification fields collected
Output formatsBase64 WAV JSON or newline-delimited audio-chunk stream.See specification notes below
LanguagesNot collectedAwaiting source review
Input billingNot collectedAddis AI
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

No model-specific disclosure reviewed; unknown is not unsupported.

Maximum input tokens
Not collected

No model-specific disclosure reviewed; unknown is not unsupported.

Maximum output
Not collected

No model-specific disclosure reviewed; unknown is not unsupported.

Parameters
Not collected

No model-specific disclosure reviewed; unknown is not unsupported.

Release date
Not collected

No model-specific disclosure reviewed; unknown is not unsupported.

Knowledge cutoff
Not collected

No model-specific disclosure reviewed; unknown is not unsupported.

Tool calling
Not collected

No model-specific disclosure reviewed; unknown is not unsupported.

Structured output
Not collected

No model-specific disclosure reviewed; unknown is not unsupported.

Streaming
SupportedSource for Streaming (opens in a new tab)

stream:true returns newline-delimited JSON audio_chunk events; not the Voice 2 framed protocol.

Batch processing
Not collected

No model-specific disclosure reviewed; unknown is not unsupported.

Fine-tuning
Not collected

No model-specific disclosure reviewed; unknown is not unsupported.

Reasoning
Not collected

No model-specific disclosure reviewed; unknown is not unsupported.

Context caching
Not collected

No model-specific disclosure reviewed; unknown is not unsupported.

Base model
Not collected

No model-specific disclosure reviewed; unknown is not unsupported.

Output formats
Base64 WAV JSON or newline-delimited audio-chunk stream.Source for Output formats (opens in a new tab)
Input limits
Legacy guide says no hard character limit, recommends streaming for longer texts. No finite token limit is disclosed.Source for Input limits (opens in a new tab)
Usage metering
Not collected

Existing Voice 1 account pricing remains unchanged according to migration docs; numeric legacy rate not established. Do not inherit Voices 2 minute rates.

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

Provider model labels, backend selections and voice IDs do not establish an immutable request-side checkpoint selector.

Access
POST https://api.addisassistant.com/api/v1/audio; X-API-Key; JSON text, language, optional stream. Deprecated, retained for existing integrations.
Regions
Policy allows Ethiopia, Switzerland, EEA and provider regions. Exact request routing and private residency require agreement.

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

Data & enterprise terms

Standard-service terms/privacy permit content review, model training, fine-tuning and improvement. No-training or restricted processing requires a controlling written enterprise agreement. Account content and clips may persist for feature use, safety/legal needs or agreed terms; transient realtime processing has separately retained operational logs. No universal numeric retention TTL. Processing may occur in Ethiopia, Switzerland, EEA and provider regions; private residency requires written agreement.

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.

Addis AI

Not verified

No native inference-cache contract reviewed. Request replay, durable clips, fileUri reuse and recovery windows are distinct from prompt caching.

How it works
Not collected

No native inference-cache contract reviewed. Request replay, durable clips, fileUri reuse and recovery windows are distinct from prompt caching.

Minimum reusable input
Not collected

No native inference-cache contract reviewed. Request replay, durable clips, fileUri reuse and recovery windows are distinct from prompt caching.

Lifetime & refresh
Not collected

No native inference-cache contract reviewed. Request replay, durable clips, fileUri reuse and recovery windows are distinct from prompt caching.

How to enable it
Not collected

No native inference-cache contract reviewed. Request replay, durable clips, fileUri reuse and recovery windows are distinct from prompt caching.

Usage fields
Not collected

No native inference-cache contract reviewed. Request replay, durable clips, fileUri reuse and recovery windows are distinct from prompt caching.

Billing rules
Not collected

No native inference-cache contract reviewed. Request replay, durable clips, fileUri reuse and recovery windows are distinct from prompt caching.

Limits & data boundaries
Not collected

No native inference-cache contract reviewed. Request replay, durable clips, fileUri reuse and recovery windows are distinct from prompt caching.

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

Caching reviewed 16 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

Commercial hosted API with restricted service access and reserved provider/licensor IP. Public research artifacts exist; this entry is not an assertion of an independently closed-weight checkpoint.

Classification evidence (opens in a new tab)

Sources reviewed