/ Google / Gemini 2.5 Pro text-to-speech Google / Gemini
Gemini 2.5 Pro text-to-speech Speech generation model offered through the Gemini API.
preview Closed weights Speech generation
Input token limit 8.2K 8,192 tokens
Maximum output 16.4K 16,384 tokens
Input billing See rates Google Gemini API
Output billing See rates Published units and conditions below
Specifications Access & pricing Caching Evaluation Sources & lifecycle
Specifications Provider-documented facts. “Not collected” means we have not verified that field yet, not that the feature is unsupported.
Streaming Not collected
Fine-tuning Not collected
Knowledge cutoff Not collected
Parameters Not collected
Architecture Not collected
Languages 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 gemini-2.5-pro-preview-tts
Access Existing-user access restriction documented for the listed Gemini 2.5 models. Account, tier and region requirements also apply.
Regions See Google supported-region and account requirements; region-specific availability not yet collected. Prices retain their published currencies and billing units below.
Published billing units · original currency · observed 12 Oct 2026 Category Usage Rate Unit Text tokens Input1 $1.00 1M text tokens Audio tokens Output1 $20.00 1M audio tokens
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 INPUT Process & retain The system processes eligible input and retains reusable state.
02 / LATER REQUEST Check available state Reuse depends on matching input, session state and the cache policy.
03 / CACHE HIT Reuse & generate Reusing state can reduce repeated work. Any charges follow the billing rules below.
Google Gemini API gemini-2.5-pro-preview-ttsNot supported Not supported
Support evidence (opens in a new tab) Caching reviewed 12 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 Google-documented proprietary hosted release in the Gemini API model catalog. No public weights identified for this release in the reviewed documentation; public-weight Gemma models are excluded.
Classification evidence (opens in a new tab) Lifecycle dates Sources reviewed 