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AI cost estimator

Pick a task and a monthly volume. The page prices it on each model from the vendors' published rates and shows the formula behind every figure. You don't need to know what a token is; the AI section explains it.

1. Pick a task

Summarize a documentOne pass over a long document, for example about 20 pages, into a short summary.Customer support chatA back-and-forth chat. Each turn sends the system prompt and every earlier message again, so input grows with every turn.Draft an emailA short prompt in, a drafted email out.Code assistant sessionA working session of separate requests, each with some code as context.Document Q&A (retrieval)A question answered from passages looked up in your own documents and pasted into the prompt.

2. Adjust the numbers editable assumptions

Documents per monthWords in per documentWords out per documentInput read from the prompt cache: 0%Only models with a published cache price use it.

Reasoning tokens

Reasoning ("thinking") tokens are billed as output and can multiply it.

Batch processing (results within hours, not seconds)

Currency

Model tier

3. Monthly cost by model

Summarizing 1,000 documents a month costs between $1.33 and $66.67 depending on the model.

Prices as of 2026-11-03. Same tokens-per-word ratio (1.333) assumed for every model; real token counts differ by model. Tiers group models for comparison; they are not a quality ranking.

Model	Tier	Per month (USD)	Per run (USD)	vs cheapest in tier	Last verified	Price page
DeepSeek V4 FlashDeepSeek	Small	$1.33	$0.0013	Lowest in tier	2026-11-03	Vendor price page
Claude Haiku 5.5Anthropic	Small	$1.67	$0.0017	+25%	2026-11-03	Vendor price page
GPT-6 LunaOpenAI	Small	$1.67	$0.0017	+25%	2026-11-03	Vendor price page
Mistral Small (2603)Mistral	Small	$2.40	$0.0024	+80%	2026-11-03	Vendor price page
Qwen3.8 27BAlibaba (Qwen)	Small	$3.25	$0.0032	+144%	2026-11-03	Vendor price page
Gemini 3.5 Flash-LiteGoogle	Small	$5.67	$0.0057	+325%	2026-11-03	Vendor price page
Llama 3.3 70B InstructMeta	Mid	$1.55	$0.0015	Lowest in tier	2026-11-03	Vendor price page
Llama 4 MaverickMeta	Mid	$2.94	$0.0029	+90%	2026-11-03	Vendor price page
Mistral Large 4Mistral	Mid	$10.73	$0.0107	+594%	2026-11-03	Vendor price page
Gemini 3.8 FlashGoogle	Mid	$13.75	$0.0137	+789%	2026-11-03Check	Vendor price page
GPT-6.1 TerraOpenAI	Mid	$16.67	$0.0167	+978%	2026-11-03	Vendor price page
Claude Sonnet 5.5Anthropic	Mid	$33.33	$0.0333	+2055%	2026-11-03	Vendor price page
DeepSeek V4 ProDeepSeek	Frontier	$23.47	$0.0235	Lowest in tier	2026-11-03	Vendor price page
GPT-6.1 SolOpenAI	Frontier	$33.33	$0.0333	+42%	2026-11-03	Vendor price page
Gemini 4 ArgonGoogle	Frontier	$33.33	$0.0333	+42%	2026-11-03	Vendor price page
Claude Opus 5.5Anthropic	Frontier	$66.67	$0.0667	+184%	2026-11-03	Vendor price page

Not included: taxes, support plans, tool or search charges, image and audio tokens, fine-tuning, and volume discounts a vendor negotiates privately.