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LLM API Cost Calculator 2026: Estimate Your Monthly Spend

Calculate your monthly LLM API costs across all major providers. Interactive calculator with real 2026 pricing for GPT-4o, Claude, Gemini, DeepSeek, and Mistral.

2026-04

TL;DR

Use this interactive calculator to estimate monthly LLM API costs across all major providers. Input your usage patterns and instantly see costs for every model, plus Token Landing hybrid savings.

Interactive Cost Calculator

Enter your expected usage below to calculate monthly costs across all major LLM APIs.

Selected model cost: Calculating...

Token Landing hybrid: Calculating...

Estimated savings: Calculating...

All Models: Monthly Cost Reference Table

Based on 100,000 requests/month with 1,000 input tokens and 500 output tokens per request (100M input + 50M output tokens monthly):

ModelInput CostOutput CostTotal Monthly
Mistral Nemo$2$2$4
GPT-4o-mini$15$30$45
Gemini 2.5 Flash$15$30$45
GPT-5-mini$25$100$125
DeepSeek V3$28$21$49
Claude Haiku 3.5$80$200$280
Gemini 2.5 Pro$125$500$625
Mistral Large$200$300$500
GPT-4o$250$500$750
Claude Sonnet 4$300$750$1,050
Claude Opus 4.6$500$1,250$1,750
GPT-5$1,000$1,500$2,500
Token Landing Hybrid$80 – $150$150 – $300$230 – $450

Prices approximate. Last updated April 2026.

Cost Optimization Tips

Beyond choosing the right model, several strategies can significantly reduce your LLM API spend:

  • Prompt caching saves 50-90% on repeated prompt prefixes
  • Batch API offers 50% discounts on async workloads
  • Prompt optimization reduces token counts without losing quality
  • Hybrid routing uses the right model for each request tier

FAQ

+How do I calculate LLM API costs?
Multiply your monthly input tokens by the model's input price per 1M, then add output tokens multiplied by the output price per 1M. Our calculator does this automatically for all major models.
+What is the average cost per LLM API request?
It varies widely by model and prompt length. A typical 1,000 input / 500 output token request costs $0.0001 with GPT-4o-mini, $0.0075 with GPT-4o, or $0.025 with GPT-5. Use our calculator for precise estimates.
+How much can hybrid routing save?
Token Landing's hybrid routing typically saves 40-70% compared to using a single premium model for all traffic, by routing simple requests to cheaper models while preserving quality on critical paths.

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