RAG Support Chatbot Cost Calculator
Retrieval-augmented generation chatbot retrieving 3-5 knowledge base documents per customer query. Support chatbots benefit massively from Prompt Caching on system instructions and vectorized product documentation. Using GPT-5.6 Luna ($0.20/1M) or DeepSeek V4 Flash ($0.03/1M) reduces monthly token expenses by up to 90% compared to legacy architectures.
Workload Parameters
Monthly Economics Summary
Disruptive sub-cent pricing at $0.03/1M input and 1.31M token context window.
Ultra-fast lightweight Llama 4 model running with 1.31M context window at 290 tokens/sec.
Upgraded V3 architecture delivering reliable function calling and 163k context.
Ultra-fast 1M context model running at 170 TPS at only $0.15/1M input.
Fast, lightweight model from Mistral with 262k context at only $0.15/1M tokens.
OpenAI’s fast workhorse model with 1.05M context at an ultra-low $0.20/1M input price.
Meta’s frontier Llama 4 flagship model with 1,048,576 token context and complete weights openness.
Sub-second real-time streaming model running at 185 tokens/second with 1M context window.
Frontier 1M-context flagship model from DeepSeek delivering frontier parity at $0.66/1M.
Updated R1 open reasoning model with expanded 163k context and competitive math performance.
Widely deployed open model with 131k context and flat symmetric token pricing.
Specialized 2nd generation developer code model with 262k context and superior syntax precision.
ByteDance’s high-throughput code synthesis engine with 262k context window.
Google’s state-of-the-art 3.7 generation Flash model with 1,048,576 token context and native multimodal reasoning.
Compact 5.4 model offering 400k context and fast execution.
Moonshot’s specialized coding intelligence optimized for deep reasoning and long-context codebase understanding.
Specialized code-focused Grok model offering aggressive $1.00 input / $2.00 output pricing.
Anthropic’s flagship 5th-generation model with 1,000,000 token context, 90% prompt caching discount, and top SWE-bench benchmarks.
Mistral’s flagship model with 262k context, European hosting, and state-of-the-art multilingual fluency.
OpenAI’s premier 5.6-generation flagship model with 1.05M context and unified multimodal capabilities.
xAI’s flagship model with 500,000 context window, competitive $2.00/$6.00 pricing, and real-time knowledge.
Alibaba’s frontier 3.8 Max model with 1M context and superior multilingual instruction compliance.
Advanced reasoning model from OpenAI combining RL thinking tokens with 1.05M token context.
OpenAI’s specialized 5.3 generation developer model fine-tuned on billions of code repositories.
Established 4.6 generation Sonnet with 1M context and 90% prompt caching discounts.
Cohere’s enterprise flagship with verifiable citations and built-in grounding for production RAG.
Anthropic’s highest capability model with 1M context, exceptional nuance, and superior domain comprehension.
Specialized deep reasoning model from Anthropic with 1M context and extensive chain-of-thought verification.
Architectural Cost Breakdown
In a typical RAG Support Chatbot pipeline, tokens are distributed across three distinct layers:
Prompt caching discounts apply immediately to Layer 1 and repeated multi-turn turns, reducing monthly overhead substantially.
GPT-5.6 Luna
OpenAICost-sensitive high-throughput applications, live interactive bots, structured JSON extraction
Disruptive sub-cent pricing at $0.03/1M input and 1.31M token context window.