AI Calculator Pro

Claude Fable 5.1

Anthropic · model · context window 1,000,000 tokens.

Pricing (per 1M tokens)

Input$10.00
Output$50.00
Cache read$0.2500
Cache write$12.50

Specifications

Context window1,000,000 tokens
Max output128,000 tokens
Modalitiestext
VisionNo
Tool useYes
ReasoningNo
Prompt cachingNo

Intelligence & value

Measured
Overall1514 · #3
Coding1746 · #4

Worth it? Gemini 4 Argon matches or beats Claude Fable 5.1 on the overall Arena and costs about $800.00/month versus $4,000.00/month at 100,000 calls — roughly $3,200.00/month cheaper.

Intelligence scores are community Arena ratings from LMArena / arena.ai, used under CC BY 4.0. Snapshot last refreshed 2 November 2026. Scores are a relative signal, not an absolute measure of capability. A Measured score was voted on directly; an Estimated score is inherited from an identical base model (a regional/creator-prefixed hosting duplicate). See our methodology.

Estimate cost with Claude Fable 5.1

Claude Fable 5.1 is pre-selected below. Enter your token counts and volume to see the cost per request, per day and per month — then switch models to compare.

Results update automatically as you type.

Result
$0.0350 per request
~$1,050.00/month at 1,000 requests/day
Input cost
$0.0100
Output cost
$0.0250
Per request
$0.0350
Per day
$35.00
Per month
$1,050.00

Source: auto-discovery (models.dev). Prices are re-checked daily against the provider’s official pricing; this rate was last changed on 2 November 2026. A recent date here just means the price is still current, not that it moved.