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HomeAI Cost per TaskSummarize a 100-page PDF

Documents

What it costs to summarize a 100-page PDF

A 100-page report sent whole to the model, answered with a one-page executive summary.

Pricing verified: August 2026

The short answer

Between $0.0013 and $0.140 per run, depending on the model. That is a 105× spread for the same job.

Cheapest that fits
Mistral: Mistral Nemo
$0.0013
$0.132 at 100 PDFs a month
Best value
OpenAI: GPT-5 Nano
$0.0018
$0.178 at 100 PDFs a month
Highest quality
Gemini 3.1 Pro
$0.140
$13.96 at 100 PDFs a month

How this is calculated

100 pages of dense prose at ~500 words per page = ~50,000 words ≈ 65,000 input tokens. The summary back is ~600 words ≈ 800 output tokens.

65,000 input tokens800 output tokens66k tokens context needed

Cost = (input tokens ÷ 1M × input price) + (output tokens ÷ 1M × output price). Prices come from our daily-verified model data. Batch and cached-input discounts are not applied — they only ever make these numbers smaller.

Every model, cheapest first

ModelProviderPer runAt 100 PDFs a monthContext
Mistral: Mistral NemoMistral$0.0013$0.132131k tokens
OpenAI: GPT-5 NanoOpenAI$0.0018$0.178400k tokens
Meta: Llama 3.2 1B Instructneeds chunkingMeta$0.0019$0.19260k tokens
Google: Gemma 2 9Bneeds chunkingGoogle$0.0020$0.2028k tokens
Meta: Llama 3.1 8B Instructneeds chunkingMeta$0.0033$0.33116k tokens
OpenAI: GPT-4.1 NanoOpenAI$0.0034$0.3411.0M tokens
Mistral: Mistral Small 3.2 24BMistral$0.0050$0.503128k tokens
GPT-4oOpenAI$0.0051$0.511128k tokens
Google: Gemini 2.0 Flash LiteGoogle$0.0051$0.5111.0M tokens
OpenAI: gpt-oss-safeguard-20bOpenAI$0.0051$0.511131k tokens
Mistral: Ministral 3 3B 2512Mistral$0.0066$0.658131k tokens
Llama 4 ScoutMeta$0.0067$0.674512k tokens
Mistral: Devstral Small 1.1Mistral$0.0067$0.674131k tokens
Mistral: Mistral Small Creativeneeds chunkingMistral$0.0067$0.67433k tokens
Mistral: Voxtral Small 24B 2507needs chunkingMistral$0.0067$0.67432k tokens
Google: Gemini 2.0 FlashGoogle$0.0068$0.6821.0M tokens
Google: Gemini 2.5 Flash LiteGoogle$0.0068$0.6821.0M tokens
Google: Gemini 2.5 Flash Lite Preview 09-2025Google$0.0068$0.6821.0M tokens
GPT-5.6 LunaOpenAI$0.0070$0.6981.1M tokens
Mistral: Mistral 7B Instruct v0.1needs chunkingMistral$0.0073$0.7303k tokens
Gemma 4 26B A4BGoogle$0.0088$0.877262k tokens
Meta: Llama 3 8B Instructneeds chunkingMeta$0.0092$0.9218k tokens
DeepSeek V4-FlashDeepSeek$0.0093$0.9321M tokens
Gemma 4 31BGoogle$0.0094$0.942262k tokens
Mistral: Ministral 3 8B 2512Mistral$0.0099$0.987262k tokens
GPT-4o MiniOpenAI$0.010$1.02128k tokens
Mistral: Mistral Small 4Mistral$0.010$1.02262k tokens
Google: Gemini 2.5 FlashGoogle$0.011$1.071.0M tokens
Meta: Llama Guard 4 12BMeta$0.012$1.18164k tokens
Mistral: Ministral 3 14B 2512Mistral$0.013$1.32262k tokens
Mistral: Sabaneeds chunkingMistral$0.013$1.3533k tokens
Llama 4 MaverickMeta$0.014$1.36256k tokens
OpenAI: GPT-4.1 MiniOpenAI$0.014$1.361.0M tokens
xAI: Grok Code Fast 1xAI$0.014$1.42256k tokens
OpenAI: GPT-3.5 Turboneeds chunkingOpenAI$0.017$1.6916k tokens
Anthropic: Claude 3 HaikuAnthropic$0.017$1.73200k tokens
Google: Gemini 3 Flash PreviewGoogle$0.017$1.751.0M tokens
OpenAI: GPT-5 MiniOpenAI$0.018$1.79400k tokens
OpenAI: GPT-5.1-Codex-MiniOpenAI$0.018$1.79400k tokens
DeepSeek V3DeepSeek$0.018$1.84128k tokens
xAI: Grok 3 MinixAI$0.020$1.99131k tokens
xAI: Grok 3 Mini BetaxAI$0.020$1.99131k tokens
Mistral: Codestral 2508Mistral$0.020$2.02256k tokens
Gemini 3.5 Flash-LiteGoogle$0.021$2.151.0M tokens
Google: Nano Banana (Gemini 2.5 Flash Image)needs chunkingGoogle$0.021$2.1533k tokens
Meta: Llama 3.2 11B Vision InstructMeta$0.023$2.27131k tokens
Mistral Small 3.1Mistral$0.023$2.33128k tokens
Mistral: Mistral Small 3needs chunkingMistral$0.023$2.3333k tokens
Gemini 3.6 FlashGoogle$0.026$2.591.0M tokens
Meta: Llama 3.1 70B InstructMeta$0.026$2.63131k tokens
Mistral: Devstral 2 2512Mistral$0.028$2.76262k tokens
Mistral: Devstral MediumMistral$0.028$2.76131k tokens
Mistral: Mistral Medium 3Mistral$0.028$2.76131k tokens
Mistral: Mistral Medium 3.1Mistral$0.028$2.76131k tokens
DeepSeek V4-ProDeepSeek$0.029$2.901M tokens
Llama Guard 3 8BMeta$0.031$3.12131k tokens
Mistral: Mistral Large 3 2512Mistral$0.034$3.37262k tokens
Meta: Llama 3 70B Instructneeds chunkingMeta$0.034$3.378k tokens
Anthropic: Claude Haiku 4.5Anthropic$0.035$3.45200k tokens
Gemini 3.1 FlashGoogle$0.035$3.491M tokens
Mistral: Mixtral 8x7B Instructneeds chunkingMistral$0.036$3.5533k tokens
DeepSeek R1DeepSeek$0.038$3.75128k tokens
OpenAI: o3 MiniOpenAI$0.038$3.75200k tokens
OpenAI: o3 Mini HighOpenAI$0.038$3.75200k tokens
OpenAI: o4 MiniOpenAI$0.038$3.75200k tokens
OpenAI: o4 Mini HighOpenAI$0.038$3.75200k tokens
OpenAI: GPT Audio MiniOpenAI$0.041$4.09128k tokens
Google: Gemma 2 27Bneeds chunkingGoogle$0.043$4.288k tokens
Google: Gemini 2.5 ProGoogle$0.045$4.461.0M tokens
OpenAI: GPT-5 CodexOpenAI$0.045$4.46400k tokens
Gemini 3.5 FlashGoogle$0.052$5.241.0M tokens
Anthropic: Claude 3.5 HaikuAnthropic$0.055$5.52200k tokens
Claude 4 HaikuAnthropic$0.055$5.52200k tokens
Codestral 25.01Mistral$0.061$6.07256k tokens
Kimi K2.7 CodeMoonshot$0.065$6.49256k tokens
OpenAI: GPT-3.5 Turbo (older v0613)needs chunkingOpenAI$0.067$6.664k tokens
OpenAI: GPT-4.1OpenAI$0.068$6.821.0M tokens
OpenAI: o3OpenAI$0.068$6.82200k tokens
Claude Sonnet 5Anthropic$0.069$6.901M tokens
GPT-5.6 SolOpenAI$0.069$6.901.1M tokens
GPT-5.6 TerraOpenAI$0.070$6.981.1M tokens
OpenAI: GPT-5OpenAI$0.070$6.98400k tokens
GPT-5.2 MiniOpenAI$0.082$8.18128k tokens
Muse SparkMeta$0.085$8.461.0M tokens
Google: Gemini 2.5 Pro Preview 05-06Google$0.089$8.921.0M tokens
Google: Gemini 2.5 Pro Preview 06-05Google$0.089$8.921.0M tokens
OpenAI: GPT-5 ChatOpenAI$0.089$8.92128k tokens
OpenAI: GPT-5.1OpenAI$0.089$8.92400k tokens
OpenAI: GPT-5.1 ChatOpenAI$0.089$8.92128k tokens
OpenAI: GPT-5.1-CodexOpenAI$0.089$8.92400k tokens
OpenAI: GPT-5.1-Codex-MaxOpenAI$0.089$8.92400k tokens
GLM-5.2Z.ai$0.095$9.451M tokens
OpenAI: GPT-3.5 Turbo Instructneeds chunkingOpenAI$0.099$9.914k tokens
Anthropic: Claude Sonnet 4.5Anthropic$0.104$10.351M tokens
Claude Sonnet 4.6Anthropic$0.104$10.351M tokens
Mistral Medium 3.5Mistral$0.104$10.35256k tokens
OpenAI: GPT-5.3 ChatOpenAI$0.125$12.50128k tokens
OpenAI: GPT-5.3-CodexOpenAI$0.125$12.50400k tokens
Grok 4xAI$0.135$13.482M tokens
Grok 4.5xAI$0.135$13.48500k tokens
Mistral Large 2Mistral$0.135$13.48128k tokens
Mistral: Mixtral 8x22B Instructneeds chunkingMistral$0.135$13.4866k tokens
Mistral: Pixtral Large 2411Mistral$0.135$13.48131k tokens
Qwen 3.8 MaxAlibaba$0.135$13.481M tokens
OpenAI: o4 Mini Deep ResearchOpenAI$0.136$13.64200k tokens
Gemini 3.1 ProGoogle$0.140$13.962M tokens
Google: Nano Banana Pro (Gemini 3 Pro Image Preview)needs chunkingGoogle$0.140$13.9666k tokens
OpenAI: GPT-5 Image MiniOpenAI$0.164$16.41400k tokens
Qwen 3.7 MaxAlibaba$0.169$16.851M tokens
OpenAI: GPT AudioOpenAI$0.171$17.05128k tokens
Claude Opus 5Anthropic$0.173$17.251M tokens
GPT-5.4OpenAI$0.175$17.45272k tokens
OpenAI: GPT-3.5 Turbo 16kneeds chunkingOpenAI$0.198$19.8216k tokens
Anthropic: Claude 3.7 Sonnet (thinking)Anthropic$0.207$20.70200k tokens
Anthropic: Claude Sonnet 4Anthropic$0.207$20.70200k tokens
Kimi K3Moonshot$0.207$20.701M tokens
xAI: Grok 3xAI$0.207$20.70131k tokens
xAI: Grok 3 BetaxAI$0.207$20.70131k tokens
OpenAI: GPT-4 TurboOpenAI$0.337$33.70128k tokens
Anthropic: Claude Opus 4.5Anthropic$0.345$34.50200k tokens
Claude Fable 5Anthropic$0.345$34.501M tokens
Claude Opus 4.7Anthropic$0.345$34.501M tokens
Claude Opus 4.8Anthropic$0.345$34.501M tokens
GPT-5.5OpenAI$0.349$34.901M tokens
Anthropic: Claude 3.5 SonnetAnthropic$0.414$41.40200k tokens
OpenAI: o1OpenAI$0.512$51.15200k tokens
OpenAI: GPT-5 ProOpenAI$0.536$53.55400k tokens
OpenAI: GPT-5 ImageOpenAI$0.658$65.80400k tokens
OpenAI: GPT-4 Turbo (older v1106)OpenAI$0.674$67.40128k tokens
OpenAI: GPT-4 Turbo PreviewOpenAI$0.674$67.40128k tokens
OpenAI: o3 Deep ResearchOpenAI$0.682$68.20200k tokens
OpenAI: o3 ProOpenAI$0.682$68.20200k tokens
Claude Mythos 5Anthropic$0.690$69.001M tokens
GPT-5.2OpenAI$0.810$81.04200k tokens
Anthropic: Claude Opus 4Anthropic$1.04$104200k tokens
Anthropic: Claude Opus 4.1Anthropic$1.04$104200k tokens
Claude Opus 4.6Anthropic$1.04$1041M tokens
OpenAI: GPT-4needs chunkingOpenAI$2.00$2008k tokens
OpenAI: GPT-4 (older v0314)needs chunkingOpenAI$2.00$2008k tokens
OpenAI: o1-proOpenAI$5.12$512200k tokens

“Needs chunking” means the model's context window can't hold this job in a single pass, so the real cost is higher than the figure shown and quality usually suffers.

Should you just pick the cheapest?

This is an input-heavy job, so the input price per million tokens decides almost the whole bill — the summary you get back is rounding error. Check the context window before the price: a model that can't hold 65,000 tokens has to be fed in chunks, which costs more and summarises worse.

Price your own token counts →best ai for summarizing pdfs →best long context ai →ai context window comparison →ai api cost calculator →

Frequently asked

How much does it cost to summarize a 100-page PDF with AI?

$0.0013 on Mistral: Mistral Nemo, the cheapest capable option, rising to $0.140 on Gemini 3.1 Pro at the top end. OpenAI: GPT-5 Nano is the value pick at $0.0018 per run. The job is priced at 65,000 input and 800 output tokens — see the working below.

How did you work out the token count for this task?

100 pages of dense prose at ~500 words per page = ~50,000 words ≈ 65,000 input tokens. The summary back is ~600 words ≈ 800 output tokens.

What does this cost at 100 PDFs a month?

$0.132 a month on Mistral: Mistral Nemo, $0.178 on OpenAI: GPT-5 Nano, and $13.96 on Gemini 3.1 Pro. Batch APIs typically halve these figures for work that can wait, and prompt caching cuts the input side further when the same context is reused.

Is the cheapest model the right choice for this task?

This is an input-heavy job, so the input price per million tokens decides almost the whole bill — the summary you get back is rounding error. Check the context window before the price: a model that can't hold 65,000 tokens has to be fed in chunks, which costs more and summarises worse.

Are these prices current?

Yes. Every figure on this page is computed from our model pricing data, which is checked daily against each provider's official pricing page. When a provider changes a price, these numbers change with it.

What other AI tasks cost

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Summarize a 400-page book
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Translate a 50-page document
Writing
Write a 1,500-word blog post
Writing
Write a tailored cover letter
Writing
Write 1,000 product descriptions
Engineering
Review a 500-line pull request

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