opendunes

Claude Fable 5.1 (batch)

by AnthropicReleased 1 September 2026

#1 for codingClaude Fable 5.1 reads text, images and files, keeps about 1,000 pages in mind at once, and replies in text up to about 128 pages. Give it demanding coding work, big changes across a whole codebase, interface and visual code, or finance and analysis work that runs many steps. Its plans and summaries come out shorter than Fable 5's. Anthropic advises comparing it with Opus 5.5 on hard reasoning; Opus 5.5 is the default start, and Sonnet 5.5 suits everyday jobs.

TakesTextImagesFiles
GivesText
Create API keyCompare

What it costs

You pay for what each request uses. No subscription, no minimum.

≈ 5,82 DA per message3 000 DA buys about 510 messages

One message, the ordinary use

1 000 tokens sent× 1 664,18 DA per 1M1,66 DA
500 tokens back× 8 320,89 DA per 1M4,16 DA
Total≈ 5,82 DA

Every rate

Meter↑ you send↓ comes back
Text tokens1 664,18 DA8 320,89 DA
Cached tokens read41,60 DA
Cache-write tokens2 080,22 DA
1-hour cache-write tokens3 328,36 DA

per 1M tokens

Web search · 3,33 DA per call

Answer a quick question≈ 2,33 DA
Read an invoice photo and pull out the total≈ 3,33 DA
Reply to a customer email≈ 4,33 DA
Review a pull request of about 400 lines≈ 19,97 DA
Summarise a 20-page report≈ 29,12 DA
When you pay
After the answer, from your balance. Nothing is held.
Why it varies
A longer question or a longer answer costs more.
After each one
The exact charge shows on the request.
DepositDeposits from 50 DA, with Edahabia or CIB.

Where your request runs

One company runs this model. OpenDunes sends every request to it. DA per 1M tokens: ↑ what you send · ↓ what comes back.

Anthropic…
↑ Sent, per 1M
1 664,18 DA
↓ Back, per 1M
8 320,89 DA
Cache read
41,60 DA
Latency
…
Throughput
…
Provider↑ Sent↓ BackCache readLatencyThroughputUptime
Anthropic1 664,18 DA8 320,89 DA41,60 DA………

Also charged: writing to the cache ↑ 2 080,22 · a web search 3,33 DA each.

You pay the price of the provider that served your request. Prices read 15:19 · speed over the last 30 minutes · uptime over 3 days.

Call it in code

Swap the base URL and the key. Your OpenAI code runs unchanged.

POST /v1/chat/completions
Base URL
https://opendunes.com/v1
Model ID
anthropic/claude-fable-5.1:batch
import os
from openai import OpenAI

client = OpenAI(
    base_url="https://opendunes.com/v1",
    api_key=os.environ["OPENDUNES_API_KEY"],
)

resp = client.chat.completions.create(
    model="anthropic/claude-fable-5.1:batch",
    messages=[{"role": "user", "content": "Two lines to welcome a shop in Oran."}],
)

print(resp.choices[0].message.content)
pip install openaiFull reference for this route
Sign in to run it

Runs this request once on your balance.

Parameters you can send

Standard OpenAI fields, grouped by what they control. Anything not listed is accepted and ignored.

Shaping the reply

How long, how varied, where to stop.

max_tokensstop

Reasoning

Let it think before answering — and see the thinking.

reasoningreasoning_effortinclude_reasoning

Structured output

Get JSON you can parse instead of prose.

response_formatstructured_outputs

Tools

Let the model call your functions.

toolstool_choice

Other

Also accepted by this model.

verbosity

Questions about Claude Fable 5.1 (batch)

  • How much does Claude Fable 5.1 (batch) cost in dinars?

    About 5,82 DA per message. ↑ 1 664,18 DA · ↓ 8 320,89 DA per 1M tokens.

  • Is Claude Fable 5.1 (batch) free? Can I try it?

    No. You pay per use from your balance, with no subscription. Run it once from Call it in code, at the same price.

  • What is Claude Fable 5.1 (batch) best for?

    #1 for coding · Claude Fable 5.1 reads text, images and files, keeps about 1,000 pages in mind at once, and replies in text up to about 128 pages. Give it demanding coding work, big changes across a whole codebase, interface and visual code, or finance and analysis work that runs many steps. Its plans and summaries come out shorter than Fable 5's. Anthropic advises comparing it with Opus 5.5 on hard reasoning; Opus 5.5 is the default start, and Sonnet 5.5 suits everyday jobs.

  • How do I pay for Claude Fable 5.1 (batch) without an international card?

    Deposit dinars with your Edahabia or CIB card. Every model, Claude Fable 5.1 (batch) included, is paid from that balance. No foreign card, no conversion.

  • Does Claude Fable 5.1 (batch) work in Arabic, French or Darja?

    Anthropic reports Claude's results in 14 languages besides English, Arabic and French among them, and says Claude works in many more. Darja is not named.

  • Can it read PDFs, images or a whole book?

    It reads text, images and PDFs. Up to 1M tokens in one request, about 1 000 pages. It writes up to 96 000 words at once.

  • Is Claude Fable 5.1 (batch) open source?

    No. Anthropic has not published its weights.

  • Who makes Claude Fable 5.1 (batch), and when was it released?

    Anthropic. Released 1 September 2026. It knows the world up to June 2026.

Other Anthropic models, priced in dinars

See all Anthropic models
Claude Opus 5.5Anthropic · Sep 22, 2026

#1 for reasoning · Claude Opus 5.5 reads text, images and files, keeps about 1,000 pages in mind at once, and replies up to about 128 pages, with an effort setting as the main dial between depth and speed. Give it edits that span a large codebase, bug hunts, financial or scientific analysis, and charts, diagrams or screenshots full of detail. It needs fewer steps and less output than Opus 5 for the same job and reports back in plainer language. For harder reasoning, Anthropic points to Fable 5.1; for lighter work, Sonnet 5.5.

Searches the webThinks firstUses your tools
≈4,66 DAper message
View model
Claude Haiku 5.5Anthropic · Oct 7, 2026

Haiku 5.5 is the quick, small Claude for high-volume work: summarising, sorting, pulling out details, routing, driving a web browser and acting as a helper agent. It reads text, images and files, keeps about 1,000 pages in mind, replies up to about 128 pages, and has an effort setting while deciding for itself how long to think. It succeeds Haiku 4.5, with better coding and computer use.

Searches the webThinks firstUses your tools
≈0,12 DAper message
View model
Claude Sonnet 5.5Anthropic · Sep 28, 2026

#2 for interface design · Claude Sonnet 5.5 reads text, images and files, keeps about 1,000 pages in mind at once, and replies up to about 128 pages, with thinking always on and an effort setting as the main dial. It is Anthropic's pick for well-defined daily jobs: shipping a feature, fixing a bug, or turning notes into finished reports, slide decks and spreadsheets. Lower effort keeps it responsive in agents that work step by step. For high-volume sorting and extraction, Haiku 5.5 is faster; for long, hard projects, Opus 5.5.

Searches the webThinks firstUses your tools
≈2,33 DAper message
View model
Claude Sonnet 5Anthropic · Jun 30, 2026

#8 for games · Claude Sonnet 5 reads text, images and files, keeps about 1,000 pages in mind at once, and replies up to about 128 pages. It decides for itself how long to think, and you set the effort from low to extra high. Use it for coding, agents that work through a task on their own, and professional work such as documents and analysis; it stops some dangerous requests as they happen.

#20 of 119 for codingSearches the webThinks first
≈2,33 DAper message
View model