Anthropic

Claude Fable 5

Anthropic's flagship Claude for long-running agents, with a 1M-token context window and always-on adaptive thinking.

ActiveReleased June 9, 2026Knowledge cutoff January 31, 2026Available from 2 providers
Tool callingCan invoke external tools and APIs (function calling) mid-response.Structured outputCan return JSON or schema-constrained responses instead of free text.ReasoningUses extended thinking / chain-of-thought for harder multi-step problems.Effort controlLets you dial thinking depth (low / medium / high) to trade cost for quality.Fine-tuningSupports training a custom variant on your own data.

Source: Anthropic pricing, Claude models overview

Price per 1M tokens
$10 in / $50 out
Context window1,000,000
Max output128,000
Cache read$1 / M
Batch discount-50%
ModalitiesText, Image → Text
Priced across2 providers

Pricing

Every billing leg from the live catalog, in USD per 1M tokens.

Billing legRateBatch
Input$10 / M$5 / M
Output$50 / M$25 / M
Cache read$1 / M$0.5 / M
Cache write · 5 min$12.5 / M$6.25 / M
Cache write · 1 hour$20 / M$10 / M

Cost calculator

Billing-grade math over the rate card above, including the thinking tokens most estimates miss.

Hidden reasoning tokens bill as output. 1.0x = thinking off. Medium-effort reasoning typically lands near 3x; heavy reasoning runs 6x to 8x. Set it to match your workload.

Estimated monthly cost
$5.0K
at current list prices
Fresh input$2.0K
Cached input$0.00
Output incl. thinking$3.0K
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Compare providers

The same model, priced across every platform that serves it. Lowest combined in/out rate is flagged.

PlatformInput / MOutput / MCache read / MBatchAccess
AnthropicLowest
$10$50$1✓First-party API
Cursor
$10$50$1—Direct

Price history

Has this model gotten cheaper or more expensive?

No changePriced at $10 / $50 per 1M since June 9, 2026.

More from Anthropic

Other models from the same provider.

Claude Opus 4.8
anthropic/claude-opus-4-8
$5 / $25 in / out per 1M
Claude Opus 4.7
anthropic/claude-opus-4-7
$5 / $25 in / out per 1M
Claude Opus 4.6
anthropic/claude-opus-4-6
$5 / $25 in / out per 1M
Claude Opus 4.5
anthropic/claude-opus-4-5
$5 / $25 in / out per 1M
Claude Sonnet 5
anthropic/claude-sonnet-5
$2 / $10 in / out per 1M
Claude Sonnet 4.6
anthropic/claude-sonnet-4-6
$3 / $15 in / out per 1M

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Rates are generated from SuperPenguin's live pricing catalog.