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Model infoModelsSnapshot: 15 Oct 2026

Speechify / Simba

Simba Base

Original Simba speech engine, later superseded by language-specific model IDs.

historicalClosed weightsText-to-speech
Official documentation (opens in a new tab)Reviewed 13 Oct 2026
3 of 16 specification fields collected
Context windowNot collectedAwaiting source review
Maximum outputNot collectedAwaiting source review
Input billingNot collectedSpeechifyAI API
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
Maximum output
Not collected
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
Languages
Multilingual; exact historical language inventory not pinnedSource for Languages (opens in a new tab)
Context caching
Not collected

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
simba-base
Access
Historical selector; current availability is not established. Use current model discovery for new integrations.
Regions
Deployment region and residency commitments require service-specific confirmation.

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

Data & enterprise terms

API-specific supplemental terms reserve model IP and require rights to voice inputs. Cloning requires verified speaker consent; the consent recording is retained with the voice. No blanket zero-retention or no-training claim is inferred.

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.

SpeechifyAI API

simba-base
Not verified

No model-specific prompt-cache API, lifetime or discount documented in reviewed sources. Voice conditioning, buffered audio and idempotency replay are not prompt caching.

How it works
Not collected

No model-specific prompt-cache API, lifetime or discount documented in reviewed sources. Voice conditioning, buffered audio and idempotency replay are not prompt caching.

Minimum reusable input
Not collected

No model-specific prompt-cache API, lifetime or discount documented in reviewed sources. Voice conditioning, buffered audio and idempotency replay are not prompt caching.

Lifetime & refresh
Not collected

No model-specific prompt-cache API, lifetime or discount documented in reviewed sources. Voice conditioning, buffered audio and idempotency replay are not prompt caching.

How to enable it
Not collected

No model-specific prompt-cache API, lifetime or discount documented in reviewed sources. Voice conditioning, buffered audio and idempotency replay are not prompt caching.

Usage fields
Not collected

No model-specific prompt-cache API, lifetime or discount documented in reviewed sources. Voice conditioning, buffered audio and idempotency replay are not prompt caching.

Billing rules
Not collected

No model-specific prompt-cache API, lifetime or discount documented in reviewed sources. Voice conditioning, buffered audio and idempotency replay are not prompt caching.

Limits & data boundaries
Not collected

No model-specific prompt-cache API, lifetime or discount documented in reviewed sources. Voice conditioning, buffered audio and idempotency replay are not 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

Speechify identifies the underlying voice models as its intellectual property, grants service access rather than a public weight license, and restricts reverse engineering. The named model inventory establishes native Simba releases; voice presets and integrations are not counted as new base models.

Classification evidence (opens in a new tab)

Lifecycle dates

Base ID deprecated in favor of English and Multilingual IDs20 Jun 2024Source (opens in a new tab)

Sources reviewed