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AI cost calculators

Calculate AI API, workload, and coding-tool cost.

Start with the cost question in front of you. Use a prompt-level estimate for model selection, a workload scenario for an application budget, or a seat calculator for a coding-tool rollout.

Prompt and API spend

LLM API cost calculator

Calculate per-prompt input and output cost, then project monthly spend across tracked models and pricing profiles.

Estimate API cost Prompt capacity

Context window calculator

Check whether input plus planned output fits the tracked context window for a selected model.

Check context fit Repeated context

Prompt caching cost

Estimate monthly savings when repeated prompt context receives a tracked cached-input rate.

Model cache savings Traffic mix

Model routing cost

Estimate blended spend when routine traffic moves to a lower-cost model while complex requests stay on a primary model.

Model routing savings Model selection

AI model finder

Choose a workload, budget priority, and capability requirement to build a shortlist from tracked model data.

Find models to evaluate Application budget

AI workload calculators

Model agent loops, RAG, support chat, document processing, code review, and other recurring workloads.

Browse workload scenarios Team subscriptions

Coding-tool team cost

Estimate seats and plan fees for coding assistants before a pilot or team rollout.

Plan team cost
Workload scenarios

Model a realistic application

These calculators use editable token, request, and cache assumptions. They are planning scenarios, not provider invoices.

Workload calculator

Customer support chatbot

Estimate monthly LLM API cost for a customer support chatbot with repeated context, concise answers, and steady request volume.

Model this workload Workload calculator

RAG question answering

Compare LLM API costs for retrieval-augmented generation with document context, grounded answers, and repeat traffic.

Model this workload Workload calculator

Document summarization

Estimate the cost of summarizing long documents with a large input-to-output ratio across tracked AI models.

Model this workload Workload calculator

AI agent loops

Model monthly LLM API spend for agent workflows that make repeated planning, tool-use, and follow-up calls.

Model this workload Workload calculator

Code review assistant

Estimate LLM API costs for code review prompts containing diffs, repository context, and structured review output.

Model this workload Workload calculator

Classification and routing

Compare API spend for short classification, moderation-routing, and intent-detection requests at high volume.

Model this workload

Open the general LLM API calculator

Coding-tool subscriptions

Estimate seats before rollout

Subscription estimates are kept separate from token usage and provider API charges.

Team cost calculator

GitHub Copilot

Estimate monthly and annual GitHub Copilot subscription cost by developer count and individual plan.

Estimate team cost Team cost calculator

Cursor

Estimate Cursor monthly and annual cost for individual Pro or Teams seats before rollout.

Estimate team cost Team cost calculator

Windsurf

Estimate Windsurf subscription cost for Pro, Max, or the tracked Teams base-plus-seat plan.

Estimate team cost Team cost calculator

Claude Code

Estimate the subscription cost of providing Claude Code access through tracked Pro and Max individual plans.

Estimate team cost Team cost calculator

Tabnine

Estimate Tabnine annual-commitment seat cost for Code Assistant and Agentic Platform plans.

Estimate team cost

Browse all StackLens tools

Use the result carefully: Verify provider pricing, model limits, retries, output length, caching, and excluded infrastructure costs against your own workload.