---
title: "FastRouter free inference"
description: "20 model routes currently listed at zero price. See verified limits, model IDs, privacy terms, and primary sources for FastRouter."
canonical_url: "https://freeinferencing.com/provider/fastrouter/"
md_url: "https://freeinferencing.com/provider/fastrouter.md"
last_updated: "2026-09-19"
---

# FastRouter

> 20 model routes currently listed at zero price.

## Classification

- **Directory:** Current
- **Free access:** Free model routes
- **Status:** Available now
- **Confidence:** Medium High
- **Payment card:** Unknown
- **Account:** Not documented
- **Equivalent paid value:** Not quantifiable
- **API endpoint:** `https://api.fastrouter.ai/v1`

## Models mentioned

- `fastrouter/auto`
- `google/gemini-3.1-flash-image-preview`
- `openai/gpt-oss-120b:free`
- `openai/gpt-oss-20b:free`
- `google/gemini-2.5-flash-image`
- `black-forest-labs/flux-dev`
- `black-forest-labs/flux-kontext-pro`
- `black-forest-labs/flux-pro-2.0`
- `bytedance/seedream-4.0`
- `bytedance/seedream-4.5`
- `google/gemini-3-pro-image-preview`
- `google/gemma-4-26b-a4b-it`
- `google/gemma4-26b:free`
- `leonardo-ai/lucid-origin`
- `leonardo-ai/lucid-realism`
- `leonardo-ai/phoenix`
- `nvidia/nemotron-3-nano-30b:free`
- `nvidia/nemotron-3-super:free`
- `openai/omni-moderation-latest`
- `sarvam/sarvam-105b:free`

## Limits and terms

```yaml
published_numeric_limits: false
caveat: The free gateway plan alone is BYOK/pass-through; only the
  model-specific free routes below are zero-priced inference.
```

## What happens to your prompts?

**Not private.** The terms grant broad perpetual rights to store and use inputs and outputs for debugging and service improvement.

Privacy is audited separately from price. Review the current governing terms before sending sensitive or regulated data.

## Data governance and agreements

```yaml
data_governance:
  review_status: reviewed
  plan_scope: FastRouter gateway and chat services; the selected model provider's
    separate terms govern model-side input and output use.
  prompt_retention: FastRouter's terms grant it a perpetual license to host,
    store, transfer, reproduce, adapt, and otherwise process inputs and outputs
    for service delivery, debugging, optimization, improvement, and compliance;
    no fixed deletion deadline is stated.
  response_retention: The same license and undefined retention apply to outputs.
  ordinary_logging: Account, service, API, technical, and usage information is
    processed under FastRouter's privacy policy, while downstream provider
    telemetry is independently governed.
  model_training: The terms do not provide a gateway-wide no-training promise.
    Downstream providers can impose their own training rules, and FastRouter's
    own broad improvement license is not limited to metadata.
  product_improvement: Inputs and outputs may be used to optimize and improve the
    service and API keys under an express perpetual license.
  human_or_operator_access: Content may be processed for chat, debugging,
    optimization, improvement, and legal compliance; no operator-blind or
    zero-access commitment is published.
  subprocessors_and_routing: Requests go to model providers including Amazon,
    Anthropic, Azure, DeepInfra, DeepSeek, OpenAI, Google, Groq, Perplexity,
    xAI, Meta, and fal.ai, each under separate terms.
  deletion_controls: not_documented
  caveat: The broad perpetual content license and provider-specific rules make
    this unsuitable for sensitive prompts absent a separate written agreement.
agreements:
  terms_of_service: https://fastrouter.ai/terms
  privacy_policy: https://fastrouter.ai/privacy
  model_provider_terms: https://fastrouter.ai/llm-model-terms
```

## Eligibility

No structured eligibility block was recorded.

## API compatibility and modalities

- **Compatibility:** OpenAI Compatible
- **Modalities:** Image / vision, Safety


## Before you build with FastRouter

### Read the classification narrowly

This record describes the bounded offer supported by evidence on 2026-09-19; it does not guarantee permanence, production suitability, uptime, latency, model quality, or access from every account and region. “Free model routes” should be interpreted together with the Current directory placement, Medium High confidence, Unknown payment-card status, and the plan-specific sources below.

### Resolve the live model route

The snapshot records 20 model IDs. Match the exact ID against the provider's current catalog before using it in code because zero-price routes, aliases, context limits, and feature support can rotate while an older documentation page remains online.

### Match the quota to the workload shape

Translate the allowance into peak requests per minute, input and output tokens, concurrency, retries, and every daily or monthly ceiling that applies to the intended account. The first limit reached by the workload is the practical ceiling. A large token pool can still fail interactive bursts, and a high request limit can still fail long-context work. Include tool calls and retry traffic, test the largest realistic payload, and treat research, experimental, and community access as conditional on their eligibility and fair-use terms.

### Preserve billing and privacy boundaries

The recorded payment-card requirement is Unknown, and account access is not documented. Confirm both in the live signup flow, set provider-side budgets when charges are possible, and observe the balance or usage fields after a complete request. The prompt-handling classification is **Not private** because The terms grant broad perpetual rights to store and use inputs and outputs for debugging and service improvement. Re-read the terms for the exact route and plan before sending sensitive, regulated, or proprietary content.

### Follow the evidence, then re-check it

This record links 5 first-party sources covering the offer, catalog, limits, pricing, terms, privacy, or adoption evidence available to the audit. Prefer the newest and most specific governing document or live catalog when sources disagree. A dated finding can become stale even when the page remains online, so retain the source and snapshot that supported the decision and submit a correction when a provider changes a material term.

### Plan fallback without policy drift

A fallback should preserve modality, context length, streaming, structured output, tools, safety controls, and data terms, not only API syntax. Decide which errors may retry, cap retry storms, and prevent an exhausted free route from silently switching to a billable model. Rotating aliases and free pools can change behavior without changing the endpoint, so retain the response model field and test at least one substitute route before the primary offer becomes unavailable.

### Monitor the offer as a dependency

Capture the model ID, response model, rate-limit headers, usage fields, latency, HTTP status, and provider request identifier. Watch authorization failure, quota exhaustion, catalog removal, policy revision, and balance movement as separate failure modes. Re-check the live catalog and governing sources on a schedule proportionate to the workload's importance, and keep an owner and exit path for any production dependency on volatile free capacity.

### Test one complete request before scaling

Start with the smallest permitted request using the exact credential, model ID, endpoint, region, and account type intended for deployment. Record the status, headers, usage fields, response model, latency, and dashboard balance movement. Then exercise an invalid model, quota exhaustion, or rate limit so failure is explicit and cannot silently switch to a paid route. Validate streaming, structured output, and tool calls separately because a free model can expose fewer features than its paid counterpart. Keep a budget ceiling outside the application whenever billing is possible, and do not send sensitive data until the observed route matches the reviewed agreement.

## Primary sources

- [Models](https://fastrouter.ai/models): Official Catalog
- [Pricing](https://fastrouter.ai/pricing): Official Pricing
- [FastRouter Terms of Service](https://fastrouter.ai/terms): Official Terms
- [FastRouter Privacy Policy](https://fastrouter.ai/privacy): Official Privacy
- [FastRouter model-provider terms directory](https://fastrouter.ai/llm-model-terms): Official Terms

## Sitemap

See the full [semantic sitemap](/sitemap.md) for every page and markdown mirror.