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Calcis - Know what your LLM calls cost before you make them. | Product HuntCalcis approved on SaaSHub
© 2026 Calcis · LLM cost estimates before you run anything.Calcis produces estimates, not invoices. See the accuracy disclaimer.

Know before you send.

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

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Prompt

Prompts aren't stored. OpenAI counts run locally; Claude and Gemini are sent to provider count-only endpoints. Privacy details

Target model

INPUT
$0.90
/ 1M tok
OUTPUT
$5.50
/ 1M tok
CONTEXT
400K
tokens
Compare with peers→
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
Mediumbaseline

Forecast

Projected spend · single request
$0.00
Input volume
0
tokens
Prompt · 0 tok$0.00
Response · ~0 tok projected
$0.00
Monthly spend projection
1K req/mo
$0.00
10K req/mo
$0.00
100K req/mo
$0.00
GPT-5.5 mini
400K context

Estimates only. Actual charges are set by the LLM provider at request time and may differ. Learn more.

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 →