OpenRouter Image Response Parsing Error — Fix

What this error means

OpenRouter image response parse error expected string but got object with image_url is a OpenRouter failure pattern reported for developers trying to fix openrouter api returning image responses in inconsistent formats causing parsing errors. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.

Why this happens

OpenRouter image responses must be parsed as either strings or object-shaped entries with image_url url. Integration libraries need defensive parsing to handle both formats. Fix implemented in generate.ts and edit.ts with shared parser.

Common causes

• OpenRouter returns image responses in two incompatible formats: as plain strings or as objects shaped with image_url url. Integrations expecting one format crash when receiving the other, requiring defensive parsing logic.
• OpenRouter image responses must be parsed as either strings or object-shaped entries with image_url url. Integration libraries need defensive parsing to handle both formats. Fix implemented in generate.ts and edit.ts with shared parser.

Quick fixes

1. Confirm the exact error signature matches OpenRouter image response parse error expected string but got object with image_url.
2. Check the OpenRouter account, local tool state, and provider configuration involved in the failing workflow.
3. Compare the failing environment with a known working setup, then change one configuration value at a time.

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

1. Capture the exact error message and the command, editor action, or request that triggered it.
2. Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
3. Review the source evidence below and compare it with your environment.
4. Apply one change at a time and rerun the smallest failing action.
5. 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.

Sources checked

• https://github.com/opcode87/climai/pull/2

Evidence note: OpenRouter image responses must be parsed as either strings or object-shaped entries with image_url url. Integration libraries need defensive parsing to handle both formats. Fix implemented in generate.ts and edit.ts with shared parser.

Related errors

• OpenRouter API inconsistent response format
• AI API image response parsing

FAQ

What should I check first?

Start with the exact OpenRouter image response parse error expected string but got object with image_url text and the smallest action that reproduces it.

Can I ignore this error?

No. Treat it as a failed OpenRouter workflow until the root cause is understood.

Is this guaranteed to have one fix?

No. The imported evidence supports the troubleshooting path above, but tool behavior can vary by account, plan, version, provider, and local configuration.

How do I know the fix worked?

Rerun the same command, editor action, or request. The fix is working when that action completes without OpenRouter image response parse error expected string but got object with image_url.