FreeToolSpace

AI Token & Pricing Calculator

Paste your massive prompt or codebase to instantly calculate the exact token count and compare API pricing and latency across top frontier models.

0 tokens|0 chars
Response Settings
Estimate the AI's output length to calculate total costs.
1,000
Short answer (50)Long document (16k)

Live Cost & Latency Comparison

Sorted by cheapest total cost

DeepSeek V3
DeepSeek

TOTAL COST

$0.00028

In:$0.000000
Out:$0.00028
Latency Est.~17s
Gemini 2.0 Flash
Google

TOTAL COST

$0.0004

In:$0.000000
Out:$0.0004
Latency Est.~6s
DeepSeek R1
DeepSeek

TOTAL COST

$0.00219

In:$0.000000
Out:$0.00219
Latency Est.~23s
Claude 3.5 Haiku
Anthropic

TOTAL COST

$0.0040

In:$0.000000
Out:$0.0040
Latency Est.~7s
o3-mini
OpenAI

TOTAL COST

$0.0044

In:$0.000000
Out:$0.0044
Latency Est.~9s
GPT-4o
OpenAI

TOTAL COST

$0.0100

In:$0.000000
Out:$0.0100
Latency Est.~10s
Gemini 2.0 Pro
Google

TOTAL COST

$0.0100

In:$0.000000
Out:$0.0100
Latency Est.~15s
Claude 3.5 Sonnet
Anthropic

TOTAL COST

$0.0150

In:$0.000000
Out:$0.0150
Latency Est.~13s
o1
OpenAI

TOTAL COST

$0.0600

In:$0.000000
Out:$0.0600
Latency Est.~34s
Claude 3 Opus
Anthropic

TOTAL COST

$0.0750

In:$0.000000
Out:$0.0750
Latency Est.~25s
GPT-4.5
OpenAI

TOTAL COST

$0.1500

In:$0.000000
Out:$0.1500
Latency Est.~25s

Why Calculate Tokens & Routing Costs?

The era of sending every single prompt to the most expensive foundation model is over. Research shows that organizations using a single flagship model for all tasks are overpaying by 40% to 85%. By aggressively calculating tokens and routing tasks to the most cost-effective model (like DeepSeek V3 or Gemini Flash for bulk processing, and GPT-4.5 or Claude Opus for extreme reasoning), developers can save massive amounts of API credits.

How This Calculator Works

  1. Paste your text: Drop your massive system instructions or entire codebase into the input box.
  2. Exact Tokenization: We use an exact Byte Pair Encoding (BPE) gpt-tokenizer running locally in your browser to count the guaranteed token length.
  3. Estimate Output: Use the slider to guess how long the AI's response will be.
  4. Instant Comparison: The table instantly calculates the exact Total Cost (Input + Output) and estimated latency across 11 flagship models.

Supported Models (Updated Feb 2026)

  • OpenAI: GPT-4.5, GPT-4o, o1, o3-mini
  • Anthropic: Claude 3.5 Sonnet, Claude 3 Opus, Claude 3.5 Haiku
  • Google: Gemini 2.0 Pro, Gemini 2.0 Flash
  • DeepSeek: DeepSeek R1, DeepSeek V3

Frequently Asked Questions

Is my proprietary codebase safe?

Yes, 100%. Just like all FreeToolSpace tools, the tokenization runs entirely locally in your web browser. Nothing you paste is ever sent to a server. You can safely paste confidential enterprise code to estimate costs without violating data policies.

How accurate are the token counts?

Extremely accurate. We use the standard tiktoken compatible BPE tokenizer used by OpenAI. While Anthropic and Google use slightly different internal tokenizers, the variation in token counts across Western languages is typically less than 2%, making this calculator highly reliable for budget estimations across all models.