Calculators

LLM cost calculators

Per-use-case cost calculators built on one formula: input tokens and output tokens, each priced per million. Every page shows the arithmetic, the monthly projection and what the estimate deliberately excludes. Live per-model rates come from the model catalogue.

Estimate your token cost

Workload
Rates

Type the rates from any provider’s rate card, or pick a Rynler model.

Enter both rates to see the cost, or pick a Rynler model above.

Per run
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Per day
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Per 30 days
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Input and output share of the cost

Enter both rates to see the cost, or pick a Rynler model above.

Start here

Provider-neutral token arithmetic: the formula, the units and the monthly projection.

  • LLM cost calculator

    Estimate any LLM token bill from input and output counts and a per-million rate. Formula, worked example and monthly projection.

  • Token cost calculator

    Turn any LLM token count into a cost estimate. The per-million formula, unit conversion and a monthly projection.

  • LLM token cost calculator

    The per-million token formula explained simply. Unit conversion, worked example and monthly projection.

  • API token cost calculator

    Generic API token cost arithmetic: counts and rates in, dollars out. Formula, units and exclusions.

  • LLM pricing calculator

    Compare LLM pricing tiers with one formula. How rate differences translate into monthly differences.

  • LLM token price calculator

    Turn per-million token prices into concrete costs for your counts. Units, formula and worked example.

  • LLM inference cost calculator

    Inference cost per request and per month from your own token counts. Formula and worked example.

  • LLM usage cost calculator

    Turn provider usage records into a cost estimate. Reconciliation formula and known billing gaps.

  • LLM cost calculator in Python

    The LLM token-cost formula as a small Python function. Drop it into a batch job and audit your spend.

OpenAI and GPT

GPT tiers, ChatGPT-style chat traffic and Azure-hosted OpenAI models.

  • OpenAI API cost calculator

    Estimate an OpenAI API bill from token counts and per-million rates. Formula, monthly projection and what the estimate excludes.

  • OpenAI pricing calculator

    Convert GPT token counts to dollars. Input versus output pricing, the output multiplier and a monthly projection.

  • OpenAI token pricing calculator

    Input versus output token pricing explained with the formula. The output multiplier and its effect on the bill.

  • OpenAI usage cost calculator

    Reconcile OpenAI usage records against expected cost. The formula, cache rules and common gaps.

  • OpenAI cost per token

    Per-token cost on OpenAI tiers, input and output side. Unit math and the output multiplier.

  • OpenAI cost estimator

    Estimate a monthly OpenAI API bill from workload shape and current rates. Formula and cadence multipliers.

  • GPT API cost calculator

    Per-run and monthly GPT API cost arithmetic from your own token counts. Formula and worked example.

  • GPT token calculator

    Convert GPT token counts to dollars without sending a request. The formula and a worked example.

  • GPT cost estimator

    Estimate GPT-class API costs per run and per month. Formula, cadence and exclusions.

  • GPT-4o cost calculator

    Estimate GPT-4o class token costs per run and per month from your own counts and current rates.

  • GPT-4o mini cost calculator

    High-volume workload estimates for small-tier models. Token arithmetic, runs per day and monthly projection.

  • GPT-4 cost calculator

    Cost arithmetic for GPT-4 class workloads. Rates re-rateable, formula, monthly projection.

  • ChatGPT API cost calculator

    Estimate the API cost of a chat workload. Context resend, output multipliers and monthly projection explained.

  • ChatGPT cost estimator

    Estimate chat bot and agent API costs. Context resend, output multipliers and monthly projection.

  • Azure LLM cost calculator

    The token-cost formula for Azure-hosted models. Swap in region rates for an exact estimate.

  • Azure OpenAI cost calculator

    Azure OpenAI cost estimation with region-specific rates. Formula, unit handling and exclusions.

Anthropic Claude

Claude tiers from Haiku to Opus, priced with the same two-rate formula.

Google Gemini

Gemini Flash and Pro tiers, including long-context workloads.

Other models and routers

DeepSeek, Mistral, Grok, Llama, Qwen and routing platforms.

By workload

Agents, coding sessions and retrieval pipelines, where the token shape drives the bill.

  • AI agent cost calculator

    Estimate AI agent costs per task and per month. Why agents multiply calls and how to model the task shape.

  • RAG cost calculator

    RAG pipeline cost estimation. Why retrieval-heavy workloads are input-heavy and how to project the month.

  • Claude code cost calculator

    Estimate coding-agent session costs. Why agent workloads are input-heavy and how to project monthly spend.

  • Claude code cost estimator

    Estimate monthly coding-agent session costs. Session shapes, context weight and projection.

Budgets and estimates

Monthly projections, budgets and ROI built from one measured workload.

  • LLM cost estimator

    Estimate monthly LLM spend from token counts and per-million rates. The projection formula and what it excludes.

  • LLM API cost estimator

    Production-scale LLM cost estimation. Large context shapes, monthly projection and where caching pays.

  • AI API cost estimator

    Estimate AI API spend for a team or a side project. Formula, cadence multipliers and honest exclusions.

  • AI API cost estimator

    Turn one workload shape into a monthly AI API budget line. Formula, projection and exclusions.

  • AI token cost estimator

    Estimate AI token costs across input and output sides. The formula, the multiplier effect and a monthly projection.

  • LLM monthly cost calculator

    Project a monthly LLM bill from per-run costs and daily cadence. Formula, worked numbers and exclusions.

  • LLM budget calculator

    Work backwards from a monthly budget to the token volume it allows. Formula, headroom and exclusions.

  • LLM ROI calculator

    Compare LLM token spend against the value a feature returns. The cost side of the ROI formula, honestly bounded.