AI Tokenizer & Cost Estimator
AI Token Counter & Visualizer
Calculate exact token usage, inspect colored subword tokens, estimate API costs, and ensure your prompts fit within model context windows.
100% Client-Side Privacy
Zero Latency
Active Tokenizer Engine
GPT-4o
•OpenAI omni flagship model (o200k_base tokenizer).Total Tokens
197
o200k_base (Exact)
Characters
997
869 excluding spaces
Words & Lines
122 words
19 lines • ~37s read
Chars / Token & Cost
5.06
$0.0005 / call
GPT-4o Context Window Usage•197 / 128,000 tokens
0.15%0 tokens127,803 tokens remaining128k limit
Drag and drop text or code files anywhere in the editor997 chars • 122 words • 197 tokens
Displaying 197 of 197 tokens•Hover over any token to inspect its Token ID and length
You·are·an·elite·Staff·Software·Architect·and·Security·Auditor.↵
↵
###·Objective↵
Review·the·provided·system·design·or·code·block·for·scalability,·concurrency·bottlenecks,·and·OWASP·Top·10·vulnerabilities.↵
↵
###·Guidelines↵
1.·Think·step-by-step·through·execution·pathways,·edge-case·failure·modes,·and·distributed·locking.↵
2.·Provide·concrete·recommendations·with·before-and-after·TypeScript/Go·code·snippets.↵
3.·Quantify·performance·trade-offs·(latency,·p99·throughput,·memory·footprint,·cache·invalidation).↵
4.·Strictly·follow·Clean·Architecture·and·domain-driven·design·principles.↵
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###·Output·Format↵
Format·your·evaluation·as·follows:↵
-·**Executive·Summary**:·High-level·verdict·(Production·Ready·/·Critical·Risks).↵
-·**Architecture·Breakdown**:·Component·responsibilities,·coupling,·and·data·flows.↵
-·**Detailed·Findings**:↵
··-·Issue:·Severity·(High/Medium/Low),·Description,·Impact.↵
··-·Mitigation:·Exact·code·or·architectural·pattern.↵
-·**Next·Steps**:·Prioritized·checklist·for·implementation.