AI API PricesAnthropic › Claude Fable 5

Claude Fable 5 pricing

Claude Fable 5 API cost from Anthropic — $10.00 per 1M input tokens and $50.00 per 1M output tokens. Most capable widely released. Estimate your real monthly bill below, then compare it against every other model.

Input price
$10.00
per 1M input tokens
Output price
$50.00
per 1M output tokens
Cached input
$1.00
per 1M · ~90% off input
Reference call
$0.060
1K in + 1K out

Flagship 1M context · all prices USD per 1M tokens, list price last verified 2026-06-27.

Claude Fable 5 capabilities & limits

Representative specs for this tier — confirm exact limits in the Anthropic docs.

Context window1M
Max output64K
Knowledge cutoffSep 2025
API formatanthropic
✓ Vision✓ Tools / functions✓ JSON / structured✓ Prompt caching✓ Batch API

API acting up? Check live Anthropic status → · all AI API status

Call Claude Fable 5 from your code

The exact model string and endpoint to use. Uses the Anthropic API format.

Model stringclaude-fable-5
Base URLhttps://api.anthropic.com/v1
API key envANTHROPIC_API_KEY
curl https://api.anthropic.com/v1/messages \
  -H "x-api-key: $ANTHROPIC_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{
    "model": "claude-fable-5",
    "max_tokens": 1024,
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Model strings follow each provider's naming convention; confirm the current id in the Anthropic docs before relying on it.

What a Claude Fable 5 API call actually costs

Blended input + output cost at Claude Fable 5's list rates — useful yardsticks before you commit to volume.

$0.060
Short call
1K in · 1K out
$0.055
Chat turn
3K in · 500 out
$0.250
RAG / long prompt
20K in · 1K out
$60.00
1M in + 1M out
bulk job

Claude Fable 5 cost calculator

Enter your monthly volume to estimate the Claude Fable 5 bill. Runs entirely in your browser.

Estimated monthly cost

For the full multi-model breakdown, use the cost calculator.

Anthropic models — Claude Fable 5 in context

How Claude Fable 5 prices against its siblings. Cheapest reference cost first.

Model Input /1M Output /1M Cost / call* Context Type
Claude Haiku 4.5
Fastest, near-frontier
$1.00 $5.00 $0.0060 200K Fast / cheap
Claude Sonnet 4.6
Best speed/intelligence; caching cuts input ~90%
$3.00 $15.00 $0.018 1M Balanced
Claude Opus 4.8
Top Opus reasoning/agentic
$5.00 $25.00 $0.030 1M Flagship
Claude Fable 5
Most capable widely released
$10.00 $50.00 $0.060 1M Flagship

*Reference cost of one call with 1,000 input + 1,000 output tokens — a neutral yardstick. Use the calculator for your real usage. Cheapest row highlighted.

Cheaper than Claude Fable 5? In the same flagship tier, MiniMax-M3 runs $0.300 in / $1.20 out. The overall cheapest model tracked is Gemini 1.5 Flash-8B — see the cheapest LLM API guide.

How Claude Fable 5 pricing works

Claude Fable 5 is billed per token: a lower input price of $10.00 per million tokens for everything you send, and a higher output price of $50.00 per million for everything the model generates. To turn that into a real Claude Fable 5 bill, multiply by your monthly request volume and average prompt/response length — the calculator above does exactly that.

Prompt caching is the biggest lever on your Claude Fable 5 cost: cached input tokens bill at just $1.00 per million — about 90% cheaper. If you reuse a long system prompt or context across calls, caching can dramatically cut the input portion of your bill.

List prices move fast — always confirm the current numbers on the official Anthropic pricing page before relying on them for budgeting.

Claude Fable 5 pricing FAQ

How much does the Claude Fable 5 API cost?

Claude Fable 5 costs $10.00 per 1M input tokens and $50.00 per 1M output tokens, with cached input at $1.00 per 1M (about 90% off). A typical 3K-input / 500-output call works out to about $0.055.

What is Claude Fable 5's context window?

Claude Fable 5 has a 1M-token context window. Tokens you put in the prompt are billed at the $10.00 per 1M input rate.

Does Claude Fable 5 support prompt caching?

Yes. Claude Fable 5 bills cached input tokens at $1.00 per 1M instead of $10.00 — roughly 90% cheaper for the repeated part of your prompts.

Is there a cheaper alternative to Claude Fable 5?

In the same flagship tier, MiniMax-M3 (MiniMax) is cheaper at $0.300 in / $1.20 out. The overall cheapest model on the market is Gemini 1.5 Flash-8B.

Compare Claude Fable 5 with other models