How routing simple tasks to cheaper models cut AI costs by 40%

A developer using OpenClaw for three months achieved a 40% reduction in their AI usage bill by implementing a model routing strategy based on task complexity.

Key details from the implementation

The user analyzed their usage logs and discovered that approximately 60% of their tasks were "dead simple" operations including:

• File reads
• Grep operations
• Reformatting tasks
• Quick Q&A sessions

These tasks were previously being run through Claude Sonnet, which costs approximately 10x more than cheaper alternatives like DeepSeek-v3 or Gemini Flash, with no noticeable quality improvement for these simple operations.

The routing solution

The developer set up a routing layer that automatically directs tasks to appropriate models:

• Heavy reasoning and architecture decisions: Continue to use Claude Sonnet
• Simple tasks: Automatically route to cheaper models (DeepSeek-v3, Gemini Flash)

The implementation required no changes to the developer's workflow. The routing happens automatically based on task type.

Results

• 40% lower overall bill
• No quality drop on simple tasks
• Claude usage dropped by more than half
• Almost eliminated rate limit issues due to reduced Claude usage

The user is seeking community input on how others are splitting workloads across different AI models to optimize costs while maintaining performance.