OpenRouter / LiteLLM

OpenRouter API Rate Limit Failover Causes Model Not Allowed Error for All Models After Spending Cap Hit

Fix OpenRouter rate limit failover behavior where model switch breaks completely after hitting $5 free tier spending cap Includes evidence for OpenRouter troubleshooting demand.

Source-backed Last updated May 24, 2026 2 sources Needs local verification

Category: LiteLLM
Error signature: After hitting OpenRouter API rate limit ($5 spending cap), switching models fails with 'model not allowed' error for ALL models even after limit resets
Quick fix: Reduce request pressure, check quota or plan limits, and retry with backoff instead of immediate repeated requests.
Updated: May 24, 2026
Verification status: Source-backed
Evidence: 2 public source URLs

Before you change production

This page includes public source URLs in the imported troubleshooting record. Compare those references with your version and environment before applying changes.

Reproduce the smallest failing action and save non-secret logs before changing configuration.
Check versions for OpenRouter, related SDKs, package managers, CI runners, and hosting providers.
Change one setting or dependency at a time, then rerun the same failing command or request.
Avoid destructive commands, credential rotation, billing changes, or security relaxations without a rollback plan.

What this error means

After hitting OpenRouter API rate limit ($5 spending cap), switching models fails with 'model not allowed' error for ALL models even after limit resets is a OpenRouter failure pattern reported for developers trying to fix openrouter rate limit failover behavior where model switch breaks completely after hitting $5 free tier spending cap. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.

Why this happens

GitHub issue #1405 on openclaw repo (2026-01-21). Shows OpenRouter rate limit handling gap — critical for any service using OpenRouter as fallback proxy. Also corroborated by issue #9035 on BerriAI/litellm showing 429 rate limit errors from OpenRouter FREE models not being honored. Commercial value high: many services use OpenRouter as load balancer between providers. Mapping: OpenRouter proxy/routing error → LiteLLM category (per context-dependent mapping rule).

Common causes

GitHub issue #1405 on openclaw repo (2026-01-21). Shows OpenRouter rate limit handling gap — critical for any service using OpenRouter as fallback proxy. Also corroborated by issue #9035 on BerriAI/litellm showing 429 rate limit errors from OpenRouter FREE models not being honored. Commercial value high: many services use OpenRouter as load balancer between providers. Mapping: OpenRouter proxy/routing error → LiteLLM category (per context-dependent mapping rule).

Quick fixes

Confirm the exact error signature matches After hitting OpenRouter API rate limit ($5 spending cap), switching models fails with 'model not allowed' error for ALL models even after limit resets.
Check the OpenRouter account, local tool state, and provider configuration involved in the failing workflow.
Reduce request pressure, check quota or plan limits, and retry with backoff instead of immediate repeated requests.

Platform/tool-specific checks

Verify the command, editor, extension, or API client that produced the error.
Compare local settings with CI, deployment, or editor-level settings when the error appears in only one environment.
Avoid deleting credentials, local model data, or project settings until the failing scope is clear.

Step-by-step troubleshooting

Capture the exact error message and the command, editor action, or request that triggered it.
Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
Review the source evidence below and compare it with your environment.
Apply one change at a time and rerun the smallest failing action.
Keep the working fix documented for the team or deployment environment.

How to prevent it

Keep provider/tool configuration documented.
Record non-secret diagnostics such as tool version, provider name, model name, and command path.
Add a lightweight check before CI or production workflows depend on the tool.

Diagnostic flow for this page

Match After hitting OpenRouter API rate limit ($5 spending cap), switching models fails with 'model not allowed' error for ALL models even after limit resets exactly before applying the quick fix.
Compare the failing environment with OpenRouter versions, account scope, provider settings, and deployment context.
Check the listed common causes in order, starting with the cause that best matches your logs.
Use the evidence status below to decide whether to confirm against public sources or official documentation.
Apply one reversible change, rerun the smallest failing action, and keep rollback notes.

FAQ

What does After hitting OpenRouter API rate limit ($5 spending cap), switching models fails with 'model not allowed' error for ALL models even after limit resets mean in OpenRouter?

After hitting OpenRouter API rate limit ($5 spending cap), switching models fails with 'model not allowed' error for ALL models even after limit resets indicates the workflow described by "OpenRouter API Rate Limit Failover Causes Model Not Allowed Error for All Models After Spending Cap Hit" failed in a LiteLLM context. Start by confirming the exact signature and the component that emitted it.

What should I check first for After hitting OpenRouter API rate limit ($5 spending cap), switching models fails with 'model not allowed' error for ALL models even after limit resets?

Check whether this cause matches your environment: GitHub issue #1405 on openclaw repo (2026-01-21). Shows OpenRouter rate limit handling gap — critical for any service using OpenRouter as fallback proxy. Also corroborated by issue #9035 on BerriAI/litellm showing 429 rate limit errors from OpenRouter FREE models not being honored. Commercial value high: many services use OpenRouter as load balancer between providers. Mapping: OpenRouter proxy/routing error → LiteLLM category (per context-dependent mapping rule).

Is the After hitting OpenRouter API rate limit ($5 spending cap), switching models fails with 'model not allowed' error for ALL models even after limit resets guidance source-backed?

The "OpenRouter API Rate Limit Failover Causes Model Not Allowed Error for All Models After Spending Cap Hit" page is labeled source-backed. It has 2 public source URLs from github.com, so use that evidence status when deciding how much additional verification you need.

When should I avoid the quick fix for After hitting OpenRouter API rate limit ($5 spending cap), switching models fails with 'model not allowed' error for ALL models even after limit resets?

For "OpenRouter API Rate Limit Failover Causes Model Not Allowed Error for All Models After Spending Cap Hit", avoid applying "Reduce request pressure, check quota or plan limits, and retry with backoff instead of immediate repeated requests." when the error text differs, the affected version or provider is different, or the change would touch credentials, billing, DNS, production deploy settings, or irreversible data.

What should I collect before debugging After hitting OpenRouter API rate limit ($5 spending cap), switching models fails with 'model not allowed' error for ALL models even after limit resets?

For "OpenRouter API Rate Limit Failover Causes Model Not Allowed Error for All Models After Spending Cap Hit", collect the failing OpenRouter command or request, non-secret configuration, versions, timestamps, request IDs when available, and the smallest reproduction that still triggers the signature.