Mercury Agent Fixes Free-Model Credit Burn

Credit predictability matters as much as raw model quality for developers testing agent products. This update removes a major friction point, though transparency around per-model rates will determine whether users trust the free tier.

• –Prevents unexpectedly exhausting a daily allowance with one request
• –Makes free models more practical for experimentation and lightweight automation
• –Highlights the difficulty of pricing multi-model agent workloads consistently
• –Clear usage meters and model-level token rates would further improve user confidence