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HomeAI Cost per TaskWrite a 1,500-word blog post

Writing

What it costs to write a 1,500-word blog post

A brief, an outline and reference notes in; a 1,500-word draft out.

Pricing verified: August 2026

The short answer

Between $0.0001 and $0.011 per run, depending on the model. That is a 133× spread for the same job.

Cheapest that fits
Mistral: Mistral Nemo
$0.0001
$0.0025 at 30 posts a month
Best value
GPT-5.6 Luna
$0.0013
$0.040 at 30 posts a month
Highest quality
Claude Sonnet 5
$0.011
$0.336 at 30 posts a month

How this is calculated

A brief, outline and a page of reference notes ≈ 900 words ≈ 1,200 input tokens. A 1,500-word draft ≈ 2,000 output tokens.

1,200 input tokens2,000 output tokens3k 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 30 posts a monthContext
Mistral: Mistral NemoMistral$0.0001$0.0025131k tokens
Google: Gemma 2 9BGoogle$0.0002$0.00658k tokens
Meta: Llama 3.1 8B InstructMeta$0.0002$0.006616k tokens
Mistral: Ministral 3 3B 2512Mistral$0.0003$0.0096131k tokens
OpenAI: GPT-5 NanoOpenAI$0.0004$0.013400k tokens
Meta: Llama 3.2 1B InstructMeta$0.0004$0.01360k tokens
Meta: Llama 3 8B InstructMeta$0.0004$0.0138k tokens
OpenAI: GPT-4.1 NanoOpenAI$0.0005$0.0141.0M tokens
Mistral: Ministral 3 8B 2512Mistral$0.0005$0.014262k tokens
Mistral: Mistral Small 3.2 24BMistral$0.0005$0.015128k tokens
Mistral: Mistral 7B Instruct v0.1needs chunkingMistral$0.0005$0.0153k tokens
Meta: Llama Guard 4 12BMeta$0.0006$0.017164k tokens
Llama Guard 3 8BMeta$0.0006$0.019131k tokens
Mistral: Ministral 3 14B 2512Mistral$0.0006$0.019262k tokens
GPT-4oOpenAI$0.0007$0.021128k tokens
Google: Gemini 2.0 Flash LiteGoogle$0.0007$0.0211.0M tokens
OpenAI: gpt-oss-safeguard-20bOpenAI$0.0007$0.021131k tokens
Llama 4 ScoutMeta$0.0007$0.022512k tokens
Mistral: Devstral Small 1.1Mistral$0.0007$0.022131k tokens
Mistral: Mistral Small CreativeMistral$0.0007$0.02233k tokens
Mistral: Voxtral Small 24B 2507Mistral$0.0007$0.02232k tokens
DeepSeek V4-FlashDeepSeek$0.0007$0.0221M tokens
Google: Gemini 2.0 FlashGoogle$0.0009$0.0281.0M tokens
Google: Gemini 2.5 Flash LiteGoogle$0.0009$0.0281.0M tokens
Google: Gemini 2.5 Flash Lite Preview 09-2025Google$0.0009$0.0281.0M tokens
Gemma 4 26B A4BGoogle$0.0010$0.029262k tokens
Gemma 4 31BGoogle$0.0010$0.029262k tokens
Meta: Llama 3.2 11B Vision InstructMeta$0.0011$0.033131k tokens
Meta: Llama 3.1 70B InstructMeta$0.0013$0.038131k tokens
GPT-5.6 LunaOpenAI$0.0013$0.0401.1M tokens
xAI: Grok 3 MinixAI$0.0014$0.041131k tokens
xAI: Grok 3 Mini BetaxAI$0.0014$0.041131k tokens
GPT-4o MiniOpenAI$0.0014$0.041128k tokens
Mistral: Mistral Small 4Mistral$0.0014$0.041262k tokens
Mistral: SabaMistral$0.0014$0.04333k tokens
Mistral Small 3.1Mistral$0.0015$0.046128k tokens
Mistral: Mistral Small 3Mistral$0.0015$0.04633k tokens
Mistral: Mixtral 8x7B InstructMistral$0.0017$0.05233k tokens
OpenAI: GPT-3.5 TurboOpenAI$0.0018$0.05416k tokens
Llama 4 MaverickMeta$0.0018$0.055256k tokens
OpenAI: GPT-4.1 MiniOpenAI$0.0018$0.0551.0M tokens
Google: Gemma 2 27BGoogle$0.0021$0.0628k tokens
Meta: Llama 3 70B InstructMeta$0.0021$0.0638k tokens
Mistral: Codestral 2508Mistral$0.0022$0.065256k tokens
DeepSeek V4-ProDeepSeek$0.0023$0.0681M tokens
DeepSeek V3DeepSeek$0.0025$0.076128k tokens
Google: Gemini 2.5 FlashGoogle$0.0027$0.0801.0M tokens
Anthropic: Claude 3 HaikuAnthropic$0.0028$0.084200k tokens
xAI: Grok Code Fast 1xAI$0.0032$0.097256k tokens
Google: Gemini 3 Flash PreviewGoogle$0.0033$0.0991.0M tokens
Mistral: Mistral Large 3 2512Mistral$0.0036$0.108262k tokens
Gemini 3.6 FlashGoogle$0.0042$0.1261.0M tokens
OpenAI: GPT-5 MiniOpenAI$0.0043$0.129400k tokens
OpenAI: GPT-5.1-Codex-MiniOpenAI$0.0043$0.129400k tokens
Mistral: Devstral 2 2512Mistral$0.0045$0.134262k tokens
Mistral: Devstral MediumMistral$0.0045$0.134131k tokens
Mistral: Mistral Medium 3Mistral$0.0045$0.134131k tokens
Mistral: Mistral Medium 3.1Mistral$0.0045$0.134131k tokens
DeepSeek R1DeepSeek$0.0050$0.151128k tokens
OpenAI: o3 MiniOpenAI$0.0051$0.152200k tokens
OpenAI: o3 Mini HighOpenAI$0.0051$0.152200k tokens
OpenAI: o4 MiniOpenAI$0.0051$0.152200k tokens
OpenAI: o4 Mini HighOpenAI$0.0051$0.152200k tokens
OpenAI: GPT-3.5 Turbo (older v0613)OpenAI$0.0052$0.1564k tokens
Gemini 3.5 Flash-LiteGoogle$0.0054$0.1611.0M tokens
Google: Nano Banana (Gemini 2.5 Flash Image)Google$0.0054$0.16133k tokens
OpenAI: GPT Audio MiniOpenAI$0.0055$0.166128k tokens
Anthropic: Claude Haiku 4.5Anthropic$0.0056$0.168200k tokens
OpenAI: GPT-3.5 Turbo InstructOpenAI$0.0058$0.1744k tokens
Codestral 25.01Mistral$0.0065$0.194256k tokens
Gemini 3.1 FlashGoogle$0.0066$0.1981M tokens
OpenAI: GPT-5 Image MiniOpenAI$0.0070$0.210400k tokens
Anthropic: Claude 3.5 HaikuAnthropic$0.0090$0.269200k tokens
Claude 4 HaikuAnthropic$0.0090$0.269200k tokens
Kimi K2.7 CodeMoonshot$0.0091$0.274256k tokens
OpenAI: GPT-4.1OpenAI$0.0092$0.2761.0M tokens
OpenAI: o3OpenAI$0.0092$0.276200k tokens
Gemini 3.5 FlashGoogle$0.0099$0.2971.0M tokens
Muse SparkMeta$0.010$0.3001.0M tokens
GLM-5.2Z.ai$0.010$0.3141M tokens
Google: Gemini 2.5 ProGoogle$0.011$0.3231.0M tokens
OpenAI: GPT-5 CodexOpenAI$0.011$0.323400k tokens
GPT-5.2 MiniOpenAI$0.011$0.331128k tokens
Claude Sonnet 5Anthropic$0.011$0.3361M tokens
GPT-5.6 SolOpenAI$0.011$0.3361.1M tokens
OpenAI: GPT-3.5 Turbo 16kOpenAI$0.012$0.34816k tokens
GPT-5.6 TerraOpenAI$0.013$0.3961.1M tokens
OpenAI: GPT-5OpenAI$0.013$0.396400k tokens
Grok 4xAI$0.014$0.4322M tokens
Grok 4.5xAI$0.014$0.432500k tokens
Mistral Large 2Mistral$0.014$0.432128k tokens
Mistral: Mixtral 8x22B InstructMistral$0.014$0.43266k tokens
Mistral: Pixtral Large 2411Mistral$0.014$0.432131k tokens
Qwen 3.8 MaxAlibaba$0.014$0.4321M tokens
Anthropic: Claude Sonnet 4.5Anthropic$0.017$0.5041M tokens
Claude Sonnet 4.6Anthropic$0.017$0.5041M tokens
Mistral Medium 3.5Mistral$0.017$0.504256k tokens
Qwen 3.7 MaxAlibaba$0.018$0.5401M tokens
OpenAI: o4 Mini Deep ResearchOpenAI$0.018$0.552200k tokens
Google: Gemini 2.5 Pro Preview 05-06Google$0.022$0.6451.0M tokens
Google: Gemini 2.5 Pro Preview 06-05Google$0.022$0.6451.0M tokens
OpenAI: GPT-5 ChatOpenAI$0.022$0.645128k tokens
OpenAI: GPT-5.1OpenAI$0.022$0.645400k tokens
OpenAI: GPT-5.1 ChatOpenAI$0.022$0.645128k tokens
OpenAI: GPT-5.1-CodexOpenAI$0.022$0.645400k tokens
OpenAI: GPT-5.1-Codex-MaxOpenAI$0.022$0.645400k tokens
OpenAI: GPT AudioOpenAI$0.023$0.690128k tokens
Gemini 3.1 ProGoogle$0.026$0.7922M tokens
Google: Nano Banana Pro (Gemini 3 Pro Image Preview)Google$0.026$0.79266k tokens
Claude Opus 5Anthropic$0.028$0.8401M tokens
OpenAI: GPT-5.3 ChatOpenAI$0.030$0.903128k tokens
OpenAI: GPT-5.3-CodexOpenAI$0.030$0.903400k tokens
OpenAI: GPT-5 ImageOpenAI$0.032$0.960400k tokens
GPT-5.4OpenAI$0.033$0.990272k tokens
Anthropic: Claude 3.7 Sonnet (thinking)Anthropic$0.034$1.01200k tokens
Anthropic: Claude Sonnet 4Anthropic$0.034$1.01200k tokens
Kimi K3Moonshot$0.034$1.011M tokens
xAI: Grok 3xAI$0.034$1.01131k tokens
xAI: Grok 3 BetaxAI$0.034$1.01131k tokens
OpenAI: GPT-4 TurboOpenAI$0.036$1.08128k tokens
Anthropic: Claude Opus 4.5Anthropic$0.056$1.68200k tokens
Claude Fable 5Anthropic$0.056$1.681M tokens
Claude Opus 4.7Anthropic$0.056$1.681M tokens
Claude Opus 4.8Anthropic$0.056$1.681M tokens
GPT-5.5OpenAI$0.066$1.981M tokens
Anthropic: Claude 3.5 SonnetAnthropic$0.067$2.02200k tokens
OpenAI: o1OpenAI$0.069$2.07200k tokens
OpenAI: GPT-4 Turbo (older v1106)OpenAI$0.072$2.16128k tokens
OpenAI: GPT-4 Turbo PreviewOpenAI$0.072$2.16128k tokens
GPT-5.2OpenAI$0.090$2.71200k tokens
OpenAI: o3 Deep ResearchOpenAI$0.092$2.76200k tokens
OpenAI: o3 ProOpenAI$0.092$2.76200k tokens
Claude Mythos 5Anthropic$0.112$3.361M tokens
OpenAI: GPT-5 ProOpenAI$0.129$3.87400k tokens
OpenAI: GPT-4OpenAI$0.156$4.688k tokens
OpenAI: GPT-4 (older v0314)OpenAI$0.156$4.688k tokens
Anthropic: Claude Opus 4Anthropic$0.168$5.04200k tokens
Anthropic: Claude Opus 4.1Anthropic$0.168$5.04200k tokens
Claude Opus 4.6Anthropic$0.168$5.041M tokens
OpenAI: o1-proOpenAI$0.690$20.70200k 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?

At these token counts every model on the list costs less than a cup of coffee per month, so cost is not the deciding factor — quality is. This is the clearest case in the whole set for ignoring the cheap column and buying on writing quality instead.

Price your own token counts →best ai for blog writing →best ai for writing →best ai for content marketing →best ai for seo →

Frequently asked

How much does it cost to write a blog post with AI?

$0.0001 on Mistral: Mistral Nemo, the cheapest capable option, rising to $0.011 on Claude Sonnet 5 at the top end. GPT-5.6 Luna is the value pick at $0.0013 per run. The job is priced at 1,200 input and 2,000 output tokens — see the working below.

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

A brief, outline and a page of reference notes ≈ 900 words ≈ 1,200 input tokens. A 1,500-word draft ≈ 2,000 output tokens.

What does this cost at 30 posts a month?

$0.0025 a month on Mistral: Mistral Nemo, $0.040 on GPT-5.6 Luna, and $0.336 on Claude Sonnet 5. 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?

At these token counts every model on the list costs less than a cup of coffee per month, so cost is not the deciding factor — quality is. This is the clearest case in the whole set for ignoring the cheap column and buying on writing quality instead.

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

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