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SF·SIX
SF·SIX / SOURCE-BACKED RESEARCH

AI cost calculator

Estimate the monthly API cost of a workload across current models and providers. Below: three preset workloads priced live at each model’s standard headline price.

For a support chatbot with 50,000 requests a month (1,500 input and 400 output tokens each), standard API prices range from $10.35 a month with DeepSeek V4.1 Flash to $1,750.00 with GPT-6 Astra Pro. Enter your own workload in the calculator.

Support chatbot: 50,000 requests a month

Short multi-turn conversations with a system prompt and recent history. 1,500 input and 400 output tokens per request. Open this preset in the calculator

Support chatbot: 50,000 requests a month
ModelMonthly cost (standard)Batch tier, if offeredInput / 1MOutput / 1MProvider
DeepSeek V4.1 Flash$10.35$6.75$0.09$0.18Decartfp4
GLM 5.3 Flash$10.63$7.35$0.075$0.25DeepInfrafp4
Claude Haiku 5.5$17.50$8.75$0.10$0.50Anthropic
GPT-6 Luna$17.50$8.75$0.10$0.50OpenAI
DeepSeek V4 Pro 0813$18.00Not offered$0.1333$0.40Baidufp8
MiniMax M3$36.45Not offered$0.23$0.96CoreWeavefp4
MiMo-V2.6-Pro$49.65Not offered$0.43$0.87DeepInfrafp8
GLM 5.3$67.60No cheaper batch price$0.50$1.51Sail Researchfp8
Gemini 3.5 Flash Lite$72.50$36.25$0.30$2.50Google AI Studio
Mistral Large 4$92.80Not offered$0.68$2.09Mistral AI
Step 5 Preview$129.00Not offered$1.00$2.70StepFunfp8
Gemini 3.8 Flash$131.25$65.63$0.75$3.75Google AI Studio
Muse Spark 1.3$178.75Not offered$1.25$4.25Meta
Kimi K3$199.80No cheaper batch price$0.504$8.10Sail Researchfp4
Grok 4.7$270.00Not offered$2.00$6.00xAI

The 15 cheapest of 24 tracked flagship and small models, cheapest first.

RAG / research assistant: 20,000 requests a month

Retrieved passages dominate the prompt; answers cite and summarise them. 8,000 input and 700 output tokens per request. Open this preset in the calculator

RAG / research assistant: 20,000 requests a month
ModelMonthly cost (standard)Batch tier, if offeredInput / 1MOutput / 1MProvider
GLM 5.3 Flash$15.50$10.52$0.075$0.25DeepInfrafp4
DeepSeek V4.1 Flash$16.92$10.10$0.09$0.18Decartfp4
Claude Haiku 5.5$23.00$11.50$0.10$0.50Anthropic
GPT-6 Luna$23.00$11.50$0.10$0.50OpenAI
DeepSeek V4 Pro 0813$26.93Not offered$0.1333$0.40Baidufp8
MiniMax M3$50.24Not offered$0.23$0.96CoreWeavefp4
MiMo-V2.6-Pro$80.98Not offered$0.43$0.87DeepInfrafp8
Gemini 3.5 Flash Lite$83.00$41.50$0.30$2.50Google AI Studio
GLM 5.3$101.07$100.00$0.50$1.51Sail Researchfp8
Mistral Large 4$138.06Not offered$0.68$2.09Mistral AI
Gemini 3.8 Flash$172.50$86.25$0.75$3.75Google AI Studio
Kimi K3$194.04No cheaper batch price$0.504$8.10Sail Researchfp4
Step 5 Preview$197.80Not offered$1.00$2.70StepFunfp8
Muse Spark 1.3$259.50Not offered$1.25$4.25Meta
Grok 4.7$404.00Not offered$2.00$6.00xAI

The 15 cheapest of 24 tracked flagship and small models, cheapest first.

Batch summarisation: 10,000 requests a month

Long documents summarised offline in bulk. 10,000 input and 500 output tokens per request. Open this preset in the calculator

Batch summarisation: 10,000 requests a month
ModelMonthly cost (standard)Batch tier, if offeredInput / 1MOutput / 1MProvider
GLM 5.3 Flash$8.75$5.90$0.075$0.25DeepInfrafp4
DeepSeek V4.1 Flash$9.90$5.75$0.09$0.18Decartfp4
Claude Haiku 5.5$12.50$6.25$0.10$0.50Anthropic
GPT-6 Luna$12.50$6.25$0.10$0.50OpenAI
DeepSeek V4 Pro 0813$15.33Not offered$0.1333$0.40Baidufp8
MiniMax M3$27.80Not offered$0.23$0.96CoreWeavefp4
Gemini 3.5 Flash Lite$42.50$21.25$0.30$2.50Google AI Studio
MiMo-V2.6-Pro$47.35Not offered$0.43$0.87DeepInfrafp8
GLM 5.3$57.53$55.00$0.50$1.51Sail Researchfp8
Mistral Large 4$78.45Not offered$0.68$2.09Mistral AI
Kimi K3$90.90No cheaper batch price$0.504$8.10Sail Researchfp4
Gemini 3.8 Flash$93.75$46.88$0.75$3.75Google AI Studio
Step 5 Preview$113.50Not offered$1.00$2.70StepFunfp8
Muse Spark 1.3$146.25Not offered$1.25$4.25Meta
Grok 4.7$230.00Not offered$2.00$6.00xAI

The 15 cheapest of 24 tracked flagship and small models, cheapest first.

How the estimate works

Monthly cost = requests × (input tokens × input price + output tokens × output price) ÷ 1,000,000, at each model’s standard headline price (cheapest qualifying default-region provider). Caching, long-context surcharges, reasoning tokens beyond the stated output and taxes are not included. Batch prices come from the provider’s batch tier or batch endpoint when one is listed. Estimates are indicative, not quotes.

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