Credit-to-seconds math: what you actually get per dollar
All three vendors price in credits, but credits buy different things. The only honest comparison is dollars per minute of generated 720p video at default settings.
**Runway Standard at $15/mo for 625 credits**: at ~10 credits per second of 720p Gen-3 Alpha (so 50 credits per 5-second clip), that's 62.5 seconds of video per month = roughly **$0.24/second** = **$14.40/minute**. Gen-4 costs slightly more per second (~12 credits/sec) so 625 credits = ~52 seconds = **$0.29/second** at Gen-4 quality.
**Luma Lite at $9.99/mo for 3,200 credits**: at ~50 credits per 5-second 720p Ray 2 clip (10 credits/sec), that's 320 seconds = roughly **$0.031/second** = **$1.87/minute**. Significantly cheaper than Runway at the entry tier — but Ray 2 is not directly comparable to Gen-4 on cinematic quality.
**Pika Standard at $10/mo for 700 credits**: at ~50 credits per 5-second Pika 2.2 clip, that's 70 seconds = roughly **$0.14/second** = **$8.57/minute**.
**Mid tier** ($29.99-$35/mo): Runway Pro ($35, 2,250 credits) = ~225 seconds = $0.156/sec = $9.33/min. Luma Plus ($29.99, 10,000 credits) = ~1,000 seconds = $0.030/sec = $1.80/min. Pika Pro ($35, 2,300 credits) = ~230 seconds = $0.152/sec = $9.13/min.
**Power tier** ($95/mo): Runway Unlimited at $95 covers unlimited *relaxed-mode* generation (you wait in queue, often 2-10 minutes per clip during peak). Luma Unlimited at $94.99 is similar — unlimited relaxed-mode but capped fast mode. Pika Fancy at $95 includes 8,500 credits and faster queue priority but is not strictly 'unlimited.'
**Read the takeaway carefully**: Luma is materially cheaper per second across all tiers, Runway is the most expensive, Pika sits in the middle. But the per-second cost comparison only matters if the output quality is comparable for your use case — which is where the next section comes in.