Data retention - verified
Does Fireworks AI store your API prompts?
Default retention: not retained by default (open models). Trains on your API data: No. Zero data retention: on by default (default for open models; an enforced account-wide policy is an Enterprise feature). Regional processing: US.
Read from docs.fireworks.ai, fireworks.ai. Compare every AI API's data retention
- Trains on data
- No
- ZDR
- On by default
- Regions
- US
- Verified
- 2026-10-18
How long are prompts kept by default?
- Default retention
Not retained by default (open models)
Zero data retention by default for open models: prompts and generations only in volatile memory for the request (prompt cache may hold some in memory for minutes). Metadata logged. Responses API with store=True (the default) keeps conversation data 30 days.
“Fireworks has Zero Data Retention by default.”
docs.fireworks.ai “Fireworks does not log or store prompt or generation data for any open models, without explicit user opt-in.”
docs.fireworks.ai - Duration
- Not stated
- Purpose
- Not stated
Does it train on your API data?
No
Terms of Service: Content not used to train Fireworks models or improve the Service.
“Zero Data Retention. We will not use your Content to train our own models or to improve the Service.”
Zero data retention (ZDR)
- Availability
On by default: prompts are not retained unless you opt in
Default for open models; an enforced account-wide policy is an Enterprise feature
- Who can get it
Default for inference on open models. An account-wide enforced ZDR policy (rejects anything that would persist content) is an Enterprise feature set by account Admins.
- Not covered
Under the enforced policy: Responses API store:true and background:true, FireRouter, batch inference, fine-tuning/training jobs, evaluators, dataset uploads, custom model uploads, quantization are rejected. Fireworks may still retain data where required by law or to prevent abuse.
- From the docs
“Enterprise feature. The Zero Data Retention policy is available on Enterprise accounts. Contact your Fireworks representative if you need this enabled.”
docs.fireworks.ai “The policy doesn’t affect prompt caching, which holds KV caches only in memory, or the request metadata used to operate and bill the service. Fireworks may still retain data where required by law or to prevent abuse.”
docs.fireworks.ai
Features kept longer
Stateful features hold your content until a job finishes, a window expires or you delete it, often regardless of the default above.
| Feature | Retention | The docs say |
|---|---|---|
| Responses API (store=True, the default) | 30 days, or deleted immediately via DELETE | “Retention period: All stored conversation data is automatically deleted after 30 days.”docs.fireworks.ai |
| Batch, training, stored responses, datasets, uploaded models | Not stated | “A few features do store customer content, such as stored responses, batch jobs, and training.”docs.fireworks.ai |
| Prompt cache (volatile memory) | Several minutes | “If prompt caching is active, some prompt data (and associated KV caches) can be stored in volatile memory for several minutes.”docs.fireworks.ai |
Where is your data stored and processed?
- Regional processing
US
Enterprise accounts
- Stated location
- Not stated
- How to choose
- Not stated
- What it covers
Inference (processing).
- Summary
Enterprise data residency setting restricts inference on the account to one region; currently US is the listed restriction (us.api.fireworks.ai). Default is None (any region). Training is blocked while a region is set. Dedicated deployments can be placed in specific regions.
- From the docs
“Data residency restricts inference on your account to a single region. Once a region is set, every request must use that region’s API endpoint and a model served in that region.”
docs.fireworks.ai “Enterprise feature. Data residency is available on Enterprise accounts. Contact your Fireworks representative if you need this enabled.”
docs.fireworks.ai “None is the default. For a region that is not listed, contact sales.”
docs.fireworks.ai “Training. Fine-tuning and training jobs are blocked. Support is coming soon.”
docs.fireworks.ai
Regional endpoints
- None (unrestricted)
api.fireworks.aiSource: docs.fireworks.ai
- US
us.api.fireworks.aiSource: docs.fireworks.ai
Certifications
- ISO 27001
- ISO 27701
- ISO 42001
- HIPAA
“Fireworks has achieved all three ISO certifications covering security, privacy, and AI management:”
Research notes
- inference_geo field and Fireworks-Inference-Geo header are deprecated in favor of data residency. Regional models priced at a premium. Terms of Service URL resolved to a PDF dated 7.10.26.
FAQ
Does Fireworks AI store your API prompts?
Not retained by default (open models). Zero data retention by default for open models: prompts and generations only in volatile memory for the request (prompt cache may hold some in memory for minutes). Metadata logged. Responses API with store=True (the default) keeps conversation data 30 days. The provider says: "Fireworks has Zero Data Retention by default."
Does Fireworks AI train on your API data?
No. The provider says: "Zero Data Retention. We will not use your Content to train our own models or to improve the Service."
Does Fireworks AI offer zero data retention?
On by default (default for open models; an enforced account-wide policy is an Enterprise feature). Default for inference on open models. An account-wide enforced ZDR policy (rejects anything that would persist content) is an Enterprise feature set by account Admins.
Where does Fireworks AI process your data?
Regional processing options: US (enterprise accounts). Stated processing location: Not stated.
Sources
Last verified from Fireworks AI's own pages below. Quotes are verbatim.
This page summarizes what each provider's own pages say. It is not legal advice; your contract, data processing addendum and the provider's current terms govern what happens to your data.
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