A monthly price is easy to compare. The cost of completing your work is harder. Subscription coding agents may include a usage allowance and charge for more; pay-as-you-go agents charge for measured usage. Neither model is always cheaper. This guide shows how to compare them using your own tasks instead of assuming a number of prompts equals a fixed amount of work.
What the current plans actually meter
Plan details change, so check the provider's current documentation before making a purchase. As checked on September 26, 2026:
- Nilux AI has no monthly seat fee. Standard and Pro usage is billed by input, cached-input, and output tokens at the published rates. It runs as a desktop app and in the terminal.
- GitHub Copilot offers subscriptions with included AI credits. Additional usage can be billed when the included amount is exhausted, depending on settings.
- Cursor combines subscriptions with monthly usage pools and optional additional usage. The model you choose affects how quickly a pool is consumed.
- Claude Code is included in Pro and Max subscriptions with shared usage limits. Optional credits or an API key use a separate consumption-based billing path.
These products also differ in models, interfaces, security controls, and features. A price comparison only makes sense if each candidate can finish the work to an acceptable standard.
Run a representative two-week test
Pick work you would do anyway: one small fix, one multi-file change, one test or debugging task, and one longer project session. Use the same repository and acceptance criteria for each tool. For every task, record:
- The model, active seats, and whether the task was completed and accepted.
- Human time spent prompting, reviewing, correcting, and integrating the result.
- Uncached input tokens, cached input tokens, output tokens, or the provider's equivalent usage units.
- Included credits consumed, extra usage charged, and any paid features needed for the task.
Do not compare only prompt counts. An agent that reads a large repository, runs tools, and iterates on tests can consume far more resources than a short chat message. Cost per accepted task is a better measure than cost per interaction.
Calculate the monthly total
For a token-based plan with rates quoted per million tokens, calculate: (uncached input × input rate + cached input × cache rate + output × output rate) ÷ 1,000,000. Use the live Nilux pricing page for its current model rates. If a provider charges for additional services, include those separately.
Apply time-based rates to the sessions they affect. Nilux currently publishes a provider peak-hours multiplier and schedule on the model pricing table. A calculator using only the listed off-peak rates is a lower-end estimate if you work during those windows. Record the hours of your sample workload before projecting a monthly total.
For a subscription, calculate: active seats × monthly seat price + usage beyond the included allowance + any paid add-ons. Check whether unused credits expire or can be shared. Compare the two totals for the same workload, then divide each by the number of accepted tasks. Rework time is not on the invoice, but it still matters to your team.
When each model tends to fit
Pay-as-you-go can suit irregular or seasonal work because there is no seat fee during idle periods. It also makes model and cache usage visible. That does not guarantee a lower bill: long agent runs or expensive models can cost more than a well-used subscription.
A subscription can suit developers who use its included capacity consistently, need bundled editor or team features, and value a predictable base charge. Check the actual usage limits and overage policy before calling it a fixed-cost plan. For a team, compare pooled allowances and active seats rather than assuming every developer uses the tool equally.
Include workflow and project memory
Price is only one part of a coding agent's value. Nilux can store project facts and recall them in later sessions when memory is enabled; its project memory documentation explains where the notes are kept and how to switch memory off. Measure whether that continuity saves you setup and correction time on returning tasks. Nilux runs in the terminal and, since October 2026, as a desktop app; evaluate the one you would use.
Try the comparison on your own project
Start with the Nilux quickstart, run a real task, and record its token usage and review time. Then apply the same acceptance test with your current tool. The right plan is the one that delivers the work you need at a cost and workflow you can sustain.