20 Nano Banana 2.1 2K images: $3.00 and one jobs_result read

Twenty Nano Banana 2.1 images at 2K cost $3.00 on Sume ($0.15 each), and over hosted MCP one jobs_result call with 20 job_ids reads them all back. Partial success is normal: finished ids return results, and partial_failure.failed_job_ids names the ids that need a second read.

Cost of 20 images

Image prices are flat per image.

Read a wave

After jobs_wait, one batch read returns results[] in request order. Each entry has ok and either value or a typed error.

{ "job_ids": ["job_a", "job_b", "job_c"] }

Limits and gotchas

An id that still runs comes back as job_not_completed; do not treat it as a failure of the others. Read ok per entry.

• The ceiling is 20 ids per call, the same as jobs_wait.
• include_results: true on jobs_wait can skip this read entirely.