ZX2-Tune-Talk

Plans

Start free. Upgrade for two-tune comparison, datalog analysis, and AI-assisted tune work. Cancel anytime. Prices in USD per month.

Free
$0

Upload and chat about any tune we know, or your own.

  • Upload a 256 KB ZX2 PCM binary
  • Chat with an AI grounded in real ZX2 PCM code disassembly
  • Up to 60 AI chat messages per day
  • Identify calibration strategy + embedded strings
  • AI guidance for hand-editing your bin in your own hex editor
  • Export your chat + bin summary (Markdown, CSV, JSON, PDF)
Tier 1
$30/mo

Compare two tunes and get deeper analysis of your own.

  • Everything in Free
  • Side-by-side comparison of two uploaded tunes
  • Up to 600 AI chat messages per day (10x Free)
  • Decoded calibration report: your parameters vs stock
  • Export decoded reports + comparisons (Markdown, CSV, JSON, PDF)
  • Tune health + safety scansoon
  • Compare against reference tunes (no 2nd upload)soon
Tier 2
$50/mo

Upload datalogs for AI knock, fuel-trim + AFR analysis of your tune.

  • Everything in Tier 1
  • Datalog upload + AI analysis
  • Knock, AFR / O2 + fuel-trim-vs-RPM/LOAD reports
  • Chat about your tune and datalog together
  • Export datalog reports + heatmaps (Markdown, CSV, JSON, PDF)
  • Personal expert review + feedback (bi-weekly)soon
  • Track behavior across your tune iterationssoon
Tier 3
$100/mo

AI-assisted tune modifications, human-reviewed and returned to you.

  • Everything in Tier 2
  • AI-assisted tune modifications, human-reviewedsoon
  • Edits limited to confirmed, verified parameterssoon
  • Before/after datalog validation of every changesoon
  • Modified binary returned to yousoon
  • Revert to any prior version of your tunesoon

Items marked soon are part of the plan and roll out as the disassembly project matures. AI-assisted tune modification is gated on calibration coverage we can verify - we will not write cells we have not confirmed.

AI chat limits reset every 24 hours. During early access the app runs on shared capacity, so daily limits are best-effort and may flex at peak times.

Support the project

The core tune chat is free, and Tier 3 (AI-assisted tune modification) isn't ready yet. If ZX2-Tune-Talk is useful to you, a contribution of any amount helps fund the AI that powers the disassembly research and this app's analysis, plus the time behind it. Completely optional.

Donate