Base text-token estimate, not an invoice. Excludes reasoning beyond the word estimate, output overshoot, cache writes/storage, tools, regional surcharges and editing. Unsupported tiers use Standard and say so. Check the calculation assumptions and budget for human editing.
Claude Fable 5.1per article$0.1014per month$10.14Edit inputs ↑
The short answer
Lowest estimated API cost: Claude Haiku 4.5
One 1,500-word article costs $0.0101 on Claude Haiku 4.5, Anthropic's cheapest tracked model, and $0.1014 on Claude Fable 5, its most expensive. On Claude Haiku 4.5, Batch costs $0.00507 at these assumptions.
Cheapest first. These are list rates applied to a token model — see
the methodology for exactly where that diverges from an invoice.
The 1,000w column is the per-1,000-words figure people quote: $0.00689 on Claude Haiku 4.5 at these settings.
How Anthropic prices
What is specific to this provider
Providers do not price the same way, and the differences change which model wins.
Rate structure
The shape of the lineup
Anthropic prices Claude on a simple ladder: each step up roughly doubles or
halves the rate, and input is consistently one fifth of output across the whole range.
Cache reads on most Claude models tracked here are 10% of input — Opus 5.5 charges 5%
and Fable 5.1 2.5% — so check the model rather than assume a catalog-wide rule. Cache creation costs extra and is excluded from this
estimate, so a cache-hit percentage alone is not the full cache budget.
Processing tiers
What discounts exist
All tracked Claude models offer Standard and Batch, with eligible
Batch token charges 50% off. Opus 5.5, Opus 5 and Opus 4.8 also offer Fast mode
at 2× standard rates on the first-party API. Fast and Batch cannot be combined;
there is no Claude Flex tier in this calculator.
Context pricing
Where the rate changes
Every current Claude model except Haiku 4.5 carries a 1M-token context window,
and Anthropic does not charge a higher rate above a context threshold the way Google
and xAI do. An article workflow never approaches the limit, so the rate you see is the
rate you pay.
Every gallery below includes an unedited Claude Opus 5 and Claude Sonnet 5 draft, published
blind with a current-rate cost comparison. The model and the price stay hidden until you
reveal them, so this page can name who took part without spoiling which draft is which.
Answers specific to this provider's rate structure.
Which Claude model is cheapest for writing articles?
Claude Haiku 4.5 is the cheapest tracked Claude model for a full-length draft. It is the only current Claude model with a 200K rather than 1M context window, which is irrelevant for article work — a 1,500-word article and its brief use a few thousand tokens.
How much does Claude cost per 1,000 words?
Roughly two thirds of the 1,500-word figures on this page, because output scales linearly with article length while the brief does not. Anthropic charges output at exactly five times input on every current model, so a longer article costs proportionally more than a longer brief.
Does Anthropic have a batch discount?
Yes. Every tracked Claude model supports Batch at 50% off eligible token charges. Opus 5.5, Opus 5 and Opus 4.8 also support Fast mode at 2x standard rates. Fast cannot be combined with Batch; no Claude Flex tier is modeled here.
How much does Claude prompt caching save?
Cache reads are 10% of input on most Claude models tracked here, but 5% on Opus 5.5 and 2.5% on Fable 5.1. Cache creation is an additional charge excluded from this estimate. Check the model’s read and write rates before budgeting repeated style guides or long research prompts.
Is Claude more expensive than GPT for article writing?
It depends entirely on which models you compare. Claude’s cheapest tracked model costs more per article than OpenAI’s cheapest, but OpenAI’s most expensive costs several times Claude’s most expensive. Compare like for like on the full pricing table rather than by provider.
The bottom line
Claude is one column in a five-column decision
Price your workflow here, then check it against the other providers before committing.
At article volumes the difference between two reasonable models is usually smaller than a
single hour of editing. When the work can run asynchronously, compare Claude's batch rate — not its standard rate — against DeepSeek, where no Batch tier is published. DeepSeek instead offers a separate off-peak discount.