GPT token pricing

GPT API Cost Calculator

Use this GPT API cost calculator to estimate OpenAI model spend before launching a chatbot, summarizer or AI workflow.

Calculate GPT API Cost Cost

Estimate GPT API cost for prompts, chatbots, summaries and AI apps using token counts and monthly request volume.

No API key required. Your transcript stays in your browser.

Characters: 0Words: 0Estimated input tokens: 0Estimated token count

Output tokens are estimated based on the selected summary type and input length.

Number of AI summarization requests expected each month.

Advanced Settings
i

Tokens used by the system prompt or recurring instructions in every interaction.

i

Percentage of input tokens expected to use provider prompt caching.

Compare the Same Workload Across Models

Compare model pricing, per-interaction cost, and monthly difference using the same current calculator values.

Paste sample content above to compare model costs.

Plan GPT spend before production

GPT API cost depends on model choice, prompt length, output length and request volume. The same feature can have very different monthly cost depending on whether it sends a short prompt or a full conversation history.

Paste a realistic prompt or transcript, then compare GPT models against other providers in the comparison section.

Use caseEstimate withWatch out for
Support botMessage + history + answerGrowing conversation context
SummarizerTranscript + summary outputLong transcripts
Workflow automationInstructions + data + responseRepeated model calls

GPT API Cost Calculator FAQ

Is this different from the OpenAI cost calculator?

This page targets GPT API planning broadly, while the OpenAI page focuses on provider-level comparison.

Can I estimate GPT chatbot cost?

Yes. Use AI Chatbot mode or paste a representative chat context and set monthly message volume.

Does this call OpenAI?

No. It calculates locally from estimated tokens and configured pricing data.