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Token Calculator 2025 - Compare 26+ AI Model Prices | Claude Sonnet 4.5 Available

The most accurate token calculator for Large Language Models. Compare real-time pricing for 26 AI models from 4 providers including Anthropic (Claude Sonnet 4.5, Claude Sonnet 4, Claude Haiku 3.5), OpenAI (GPT-5, GPT-4o, GPT-4-turbo), Google (Gemini 2.5 Pro, Gemini Flash), and xAI (Grok 4). Get precise token counts and cost estimates with support for prompt caching, batch API pricing, and long context windows. Calculate per API call, daily usage, and monthly projections for Claude Sonnet 4.5 and 210+ other models.

Supported AI Model Providers

  • Anthropic
  • Google
  • OpenAI
  • xAI

Key Features

  • Real-time token counting with official tokenizers
  • Support for system, user, and assistant messages
  • Cached input pricing calculations
  • Multi-currency support (USD, EUR, GBP, JPY, CNY)
  • JSON import/export for conversation data
  • Model comparison across all providers
  • Daily and monthly cost projections
  • Export cost reports as PNG images

Popular Model Pricing

Average input pricing: $2.49 per million tokens

  • Claude Haiku 3.5: Input $0.8/M, Output $4/M tokens
  • Claude Opus 4.1: Input $15/M, Output $75/M tokens
  • Claude Sonnet 3.7 (Legacy): Input $3/M, Output $15/M tokens
  • Claude Sonnet 4: Input $3/M, Output $15/M tokens
  • Claude Sonnet 4.5: Input $3/M, Output $15/M tokens
  • Gemini 2.0 Flash: Input $0.1/M, Output $0.4/M tokens
  • Gemini 2.0 Flash-Lite: Input $0.075/M, Output $0.3/M tokens
  • Gemini 2.5 Flash: Input $0.3/M, Output $2.5/M tokens
  • Gemini 2.5 Flash-Lite: Input $0.1/M, Output $0.4/M tokens
  • Gemini 2.5 Pro: Input $1.25/M, Output $10/M tokens

Token Calculator & API Cost Estimator

Compare real-time pricing for 26 AI models from 4 providers

Quick Price Comparison

ModelProviderInput $/1MOutput $/1MContext
Claude Haiku 3.5Anthropic$0.800$4.000200,000
Claude Opus 4.1Anthropic$15.000$75.000200,000
Claude Sonnet 3.7 (Legacy)Anthropic$3.000$15.000200,000
Claude Sonnet 4Anthropic$3.000$15.000200,000
Claude Sonnet 4.5Anthropic$3.000$15.000200,000
Gemini 2.0 FlashGoogle$0.100$0.4001,000,000
Gemini 2.0 Flash-LiteGoogle$0.075$0.3001,000,000
Gemini 2.5 FlashGoogle$0.300$2.5001,000,000
Gemini 2.5 Flash-LiteGoogle$0.100$0.4001,000,000
Gemini 2.5 ProGoogle$1.250$10.000200,000

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Use Cases

Whether it's project launch, model selection, or cost optimization, Token Calculator helps you make accurate decisions

Project Cost Estimation

Project Cost Estimation

Estimate AI API costs before project launch to avoid budget overruns. Input expected user volume and conversation frequency for instant daily/monthly cost projections.

Chatbot cost planningAI customer service budgetSmart document processing fees

Model Comparison & Selection

Model Comparison & Selection

Compare pricing and performance across 20+ mainstream models to find the perfect fit for your project. Filter by price, context window, caching support, and more.

GPT-5 vs Claude Opus 4.1Gemini vs Grok cost-effectivenessSmall vs Large model scenarios

Bill Review & Verification

Bill Review & Verification

Verify API billing accuracy after receiving invoices. Our calculator uses official tokenizers to ensure 99.9% accuracy in token counting.

OpenAI bill verificationAnthropic fee confirmationAbnormal charge investigation

Cost Optimization Strategy

Cost Optimization Strategy

Test different optimization strategies: prompt compression, caching utilization, smaller model alternatives. See cost reduction effects in real-time for data-driven optimization decisions.

Cached Input saves 90%Batch API discount calculationPrompt engineering cost reduction

Start calculating now, optimize your AI project costs

100% free to use, no registration required, all calculations are done locally, data never uploaded

210+ AI models supported
99.9% accuracy
Real-time pricing updates

🆕 Featured Model Calculators

🔥 NEW

Claude Sonnet 4.5

200K context • $3.00/1M input • Best for coding

Anthropic Latest

GPT-5 Token Calculator

200K context • $1.25/1M input tokens

OpenAI Latest

Grok 4 Token Calculator

256K context • $3.00/1M input (Fast: $0.20/1M)

xAI Model

GPT-5 vs Grok 4 Comparison

Detailed pricing & feature analysis

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🔥 How much is 100K Claude Sonnet 4.5 tokens?💰 How much is 100K GPT-5 tokens?💰 How much is 100K Grok 4 tokens?
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Frequently Asked Questions

How accurate is the token count compared to actual API billing?
Our calculator achieves 99.9% accuracy by using the exact same tokenizers as the API providers. For OpenAI models, we use the official tiktoken library. For Anthropic's Claude models, we implement their tokenization algorithm. This means our counts match exactly what you'll be billed for, unlike estimators that use simple character division.
What is cached input pricing and how much can it save?
Cached input pricing is a feature offered by providers like Anthropic and Google where you can reuse the same context (system prompt, examples, documents) across multiple API calls at a large discount. For example, Claude Sonnet 4 supports prompt caching with read starting at $0.30/1M tokens (≤200K tokens). Always refer to each provider's latest pricing.
Which AI model offers the best price-to-performance ratio in 2025?
As of September 2025, Claude 3.5 Haiku offers exceptional value at $0.25/1M input tokens with performance rivaling GPT-4o-mini. For high-volume applications, Gemini 1.5 Flash provides competitive pricing with a massive 1M token context window. GPT-4o-mini remains popular for its balance of cost ($0.15/1M input) and OpenAI ecosystem integration. The 'best' choice depends on your specific needs: latency requirements, context length, and feature support.
How do I calculate costs for a production chatbot serving 10,000 users?
For production scaling: 1) Estimate average conversation length (typically 5-10 exchanges). 2) Calculate tokens per conversation (usually 500-2000 tokens total). 3) Multiply by daily active users and conversation frequency. Example: 10,000 users × 2 conversations/day × 1,000 tokens = 20M tokens/day. With GPT-4o-mini, that's about $3-12/day depending on input/output ratio. Our calculator's 'requests per day' feature helps you model these scenarios precisely.
Can I use this calculator for fine-tuned or custom models?
Yes, our calculator supports fine-tuned model pricing. OpenAI's fine-tuned models may differ from base rates. For GPT-4o fine-tuned, we use $3.75/1M input, $15/1M output, and $1.875/1M cached input as defaults. You can also set custom enterprise prices if needed. Tokenization is unchanged, so counts remain accurate.
How often are the model prices updated and verified?
We verify all prices daily through automated checks against provider APIs and documentation. When providers announce price changes, we typically update within 2-4 hours. Each model shows a 'last verified' timestamp. We also track historical pricing trends, which is valuable for budgeting and forecasting. Major price drops in 2024-2025 have made LLMs 70% cheaper on average.
What's the difference between streaming and batch API pricing?
Most providers charge the same for streaming and non-streaming requests - you pay for total tokens regardless of delivery method. However, OpenAI offers Batch API with 50% discount for non-urgent requests (24-hour turnaround). Some providers like Anthropic offer priority tiers with different pricing. Our calculator shows standard synchronous pricing by default, but you can mentally apply batch discounts where applicable.
How do I optimize token usage to reduce API costs?
Key strategies: 1) Use system message caching for repeated contexts (90% savings). 2) Implement prompt compression techniques - remove unnecessary words while maintaining clarity. 3) Use smaller models where possible - GPT-4o-mini often suffices instead of GPT-4o. 4) Batch similar requests together. 5) Set appropriate max_tokens limits. 6) For RAG systems, optimize chunk sizes (we have a RAG Chunk Optimizer tool). These techniques can reduce costs by 50-70% without sacrificing quality.

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