Original explainer
AI coding costs: software, platforms and model usage
Read official DeepSeek API, OpenRouter and Cline information without confusing free software, credits, BYOK or subscriptions with a complete task budget.
When choosing an AI coding tool, establish whether you are paying for software, a model-access path or actual inference usage. One interface can connect to different billing paths. Check the plan you are using before deciding which charges apply. This explainer is based on the dated source review and gives a way to read pricing, without hands-on task results or a cheapest-tool ranking.
Follow one use through three billing questions
Does the software cost money?
Check the editor, extension or CLI itself. Cline’s free-software description does not include model inference costs.[5]
How do you access models?
Credit purchases, BYOK and ClinePass are different paths. Check platform fees, subscription periods and usage boundaries.[3][4][6]
How is actual use measured?
APIs can meter inputs, outputs or successful requests; subscriptions can also impose rolling and periodic limits.[1][2][7]
Choose the access path before comparing prices
Free software, prepaid credits and paid subscriptions describe different purchases. Compare what each payment covers before deciding whether the prices can share one budget basis.
| Plan | Checked billing boundary | Still to check |
|---|---|---|
| Cline Open Source | Free software; models are billed separately or use BYOK. | Model bills, recurring allowance and end-to-end task costs. |
| OpenRouter Standard | Credit-purchase platform fees are separate from inference spend. | Selected model/provider, fallback path and actual usage. |
| DeepSeek API | Rates depend on model, time window and billing unit. | Cache proportions, output volume and auxiliary requests. |
| ClinePass | Monthly subscription with periodic limits; token references measure quota. | Exact allowance, checkout charges and applicable models. |
DeepSeek API: separate inputs, outputs and auxiliary requests
The model pricing table separates cached inputs, uncached inputs and outputs. Its lowest line item cannot replace a complete task cost. Match the model version and peak/off-peak window to the plan actually used.[1]
Search and Fetch are metered by successful requests, separately from model tokens. Their billing description requires the relevant success conditions; counting requests sent by the client can differ from billable usage.[2]
- Record the model and billing window.
- Estimate cached input, uncached input and output volumes separately.
- Check auxiliary search/fetch requests against their success conditions.
- Label the result as an estimate; actual billing follows service-side measurement.
OpenRouter: no platform fee does not mean free inference
Standard’s credit-purchase fee is separate from later model spending. BYOK uses your own provider key; its no-platform-fee allowance is measured by list-price inference spending, while the provider still bills you directly. This allowance is not free model-compute credit.[3][4]
A failed BYOK request can fall back to shared access and consume OpenRouter credits. Check model/provider fallback settings before estimating costs; entering your own key alone does not establish the eventual billing path.[4]
- Record platform fees and provider inference bills separately.
- Check how the BYOK platform-fee allowance is measured.
- Establish which billing path applies after a fallback.
- Review Standard, Business and Enterprise separately instead of borrowing entitlements.
Cline: review the free core and ClinePass separately
Cline Open Source being free software does not establish permanently free model use. Your provider key or purchased model credits belong to another cost layer, and the free-software description does not grant ClinePass or Enterprise entitlements.[5]
ClinePass is a separate subscription path. Its documentation describes rolling, weekly and monthly limits. Reference input/output token rates measure subscription quota rather than charging subscribers per API request. Adding those references to the subscription bill would mix different accounting bases.[7]
Check the original currency symbol, quote, processing fee and checkout amount separately. Without an explicit currency code and applicable allowance, do not infer exchange rates from a symbol or turn a monthly quote into an annual invoice.[6]
- Confirm whether you use Open Source, the Cline provider or ClinePass.
- Check the model and each time-window limit.
- Separate subscription-quota references from usage-based billing.
- Check the full payment amount, region, eligibility and output rights.
Keep this checklist before paying
- Task: what are the inputs, outputs and expected number of iterations?
- Plan: which model, access path and version will actually be used?
- Metering: tokens, successful requests, credits or subscription periods?
- Costs: are platform, provider, auxiliary-service and tax charges separate?
- Conditions: does one plan cover language, region, platform, commercial-use and export requirements?
- Unknowns: which official terms or actual-use records are still missing? Keep them pending.
These are editorial checking steps. No development task, top-up, subscription purchase or model call was performed in the tools discussed. Complete same-plan reviews and hands-on tasks remain unfinished; this explainer does not prove that a tool is cheapest, permanently free or suitable for every requirement.
Article sources
Original editorial content; official descriptions and checking suggestions are distinguished.
- DeepSeek · Flash API · off-peak usage
- DeepSeek · Search standalone API · successful requests
- OpenRouter · Standard · prepaid credits and usage
- OpenRouter · Standard · prepaid credits and usage
- Cline · Open Source · free software; model costs separate
- Cline · ClinePass · original $ monthly quote
- Cline · ClinePass · original $ monthly quote