ThinkFacility Sign in

AI models · Anthropic

Claude Fable 5: release date and what it's for

Released , according to Anthropic's announcement. Still active, marked legacy. Same price as 5.1, so there's no reason to pin to it unless something in your prompts regressed.

Status
Live
Released
Lab
Anthropic
Input
$10per million tokens
Output
$50per million tokens
Context window
1Mtokens
Max output
128Ktokens

API model ID: claude-fable-5

Explained: Claude models explained: Opus 5.5, Fable 5.1, Mythos and why there's no Opus 5.1

What we've written about Claude Fable 5

October 13, 2026

Anthropic says new defenses cut the data distillers take from Claude by 90 to 99%

The company names Zhipu and Moonshot, and says honest developers are paying part of the cost.

September 22, 2026

Xiaomi's MiMo-V2.6-Pro tops the open-weights index, but its own table puts Opus 5 ahead

Xiaomi trained it with one reinforcement learning run across coding, agents, vision and cybersecurity, and put the weights on Hugging Face under MIT.

How Claude Fable 5 compares on price and context

Price per million tokens

inputoutput

  1. Claude Fable 5$10 / $50
  2. Claude Mythos 5.1$10 / $50
  3. Claude Fable 5.1$10 / $50
  4. GPT-6 Astra$10 / $50
  5. Claude Opus 5.5$4 / $20
  6. Muse Spark 1.3$1.25 / $4.25
  7. Gemini 3.8 Flash$0.75 / $3.75
Context window, in tokens

how much it reads at once

  1. GPT-6 Astra1.05M
  2. Muse Spark 1.31.05M
  3. Gemini 3.8 Flash1.05M
  4. Claude Fable 51M
  5. Claude Opus 5.51M
  6. Claude Mythos 5.11M
  7. Claude Fable 5.11M

Next to the newest Anthropic models and the current model from other labs. Prices are in US dollars per million tokens.

What is Claude Fable 5?

Claude Fable 5 is a model from Anthropic, built in the US. It's out, and you can use it today.

When did Claude Fable 5 come out?

Anthropic released it on June 9, 2026. That date comes from Anthropic's announcement.

More from Anthropic

AnthropicLive

Claude Opus 5.5

in /1M
$4
out /1M
$20
context
1M
AnthropicLive

Claude Mythos 5.1

in /1M
$10
out /1M
$50
context
1M
AnthropicLive

Claude Fable 5.1

in /1M
$10
out /1M
$50
context
1M
AnthropicLive

Claude Opus 5

in /1M
$5
out /1M
$25
context
1M
AnthropicLive

Claude Sonnet 5

in /1M
$2
out /1M
$10
context
1M
AnthropicLive

Claude Haiku 4.5

in /1M
$1
out /1M
$5
context
200K
AnthropicLive

Claude Sonnet 4.5

in /1M
$3
out /1M
$15
context
200K
AnthropicNot a model

Claude Opus 5.1

Most likely meant: Claude Opus 5 or Claude Fable 5.1

More news: Anthropic news and Claude updates

.