LLM Token Budget & Multi-Model Cost Calculator
Estimate tokens, compare frontier model pricing, and analyze prompt caching economics in real-time.
Paste any prompt or document to calculate live token counts across Claude Opus 5 and Sonnet 5, GPT-6 Astra and the GPT-5.6 tiers, Gemini 3.8 Flash, and DeepSeek V4, with multi-provider cost projections and prompt caching discounts. Listed rates were verified against first-party provider pricing pages in September 2026.
LLM Token Budget & Multi-Model Pricing Matrix
Estimate tokens, compare frontier model pricing, and calculate prompt caching economics in real-time.
Low-cost 1M-context workhorse. Listed rate published through 31 Dec 2026.
Cost Matrix Across All ProvidersSorted by Cost
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Systems & Security Engineers • Applied Cryptography & High-Performance Web Tools
How to Use LLM Token Budget & Multi-Model Cost Calculator
Paste Prompt or Context
Type or paste your prompt, system instructions, or RAG documentation into the editor.
Set Expected Output Length
Adjust the completion slider to reflect your expected generation token count.
Toggle Prompt Caching
Enable prompt caching to factor in cache read discounts (up to 90% off input tokens).
Compare Model Economics
Analyze the sorted cross-provider matrix to find the optimal speed, intelligence, and price.
Practical Examples & Conversions
Prompt: 10,000 tokens, Output: 800 tokens
DeepSeek V4 Flash: $0.0055 | Gemini 3.8 Flash: $0.0105 | Claude Opus 5: $0.0700
Frequently Asked Questions (PAA)
LLM Token Counting and Cost Estimation: BPE Mechanics, Context Budgets, and Real Math
Understand how tokenizers split text, why counts differ per provider, and how to compute API spend correctly including cache reads, batch discounts, and the multi-turn history multiplier.
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Authoritative Standards & Citations
Calculations and algorithms on this page are implemented and verified in strict accordance with the following official technical specifications:
RFC 7519: JSON Web Token (JWT)
Standardized compact, URL-safe means of representing claims to be transferred between two parties.
Web Cryptography API Specification
Standard JavaScript API for performing basic cryptographic operations in web applications.
RFC 4122: A Universally Unique IDentifier (UUID) URN Namespace
Definition of uniform format and generation algorithms for UUIDs.