[calcis]
EstimatorCalculatorSessionPricing

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  • Calculator
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© 2026 Calcis · LLM cost estimates before you run anything.

Know before you send.

Exact token counts and spend projections for any prompt, across every major model.

Prompt

Target model

Reasoning effort

Higher effort lets the model reason longer — reasoning tokens bill at the output rate, so cost scales with the level.

1.0× baseline

Forecast

Projected spend · single request
$0.00
Input volume
0
tokens
Prompt · 0 tok$0.00
Response · ~0 tok projected
$0.00
At 1,000 requests / month$0.00
At 100,000 requests / month$0.00
GPT-5
400K context window

Modelling a multi-turn workflow? Open the Session Simulator →

Keep exploring

  • Compare every model side-by-side →
  • Cost calculators for chatbots, RAG, agents →
  • Read the Q2 2026 pricing report →
  • Token counters for GPT, Claude, Gemini →
  • Unit converters (words ↔ tokens ↔ dollars) →
  • Full model pricing reference →