anthropic · 1M input + 1M output tokens · USD
Same model · same workloadClaude Sonnet 4.6Official API baseline$18
OpenRouter1M input + 1M output$18.99Model usage$18Credit purchase fee estimate+$0.995.5% when purchasing credits, not per request
Vercel AI GatewayLowest gateway cost1M input + 1M output$18Model usage$18Gateway markup$0No token markup
Cloudflare AI Gateway1M input + 1M output$18.9Model usage$18Unified Billing fee estimate+$0.95% unified billing fee
Portkey1M input + 1M output$18 + planModel usage$18Platform planSeparate planProvider usage plus a separate platform planEstimated total uses 1 million input tokens plus 1 million output tokens. OpenRouter's funding estimate applies 5.5% to this amount for comparison; the real charge occurs when credits are purchased and has a $0.80 minimum per purchase. Taxes, payment charges, discounts, and monthly plans are excluded.