# Claude Mythos 5

Claude Mythos 5 ist ein Modell von Anthropic, erstmals am 2026-10-07 erfasst; das Veröffentlichungsdatum ist nicht bestätigt. Das Kontextfenster umfasst 1.000.000 Tokens. Die maximale Ausgabelänge beträgt 128.000 Tokens. Pro Million Tokens kostet die Eingabe $10,00 und die Ausgabe $50,00.

- Entwickler: Anthropic
- Id: claude-mythos-5
- Laut Berichten: 2026-07-01T13:44:59.000Z
- Sichtung: 2026-10-07T19:43:10.391Z
  - [Beleglink](https://code.claude.com/docs/en/changelog)
- Status: Sichtung
- Kanonisch: https://alexgetman.com/de/models/anthropic/claude-mythos-5/

## Fragen

### Wie groß ist das Kontextfenster von Claude Mythos 5?

Das Kontextfenster umfasst 1.000.000 Tokens. Die maximale Ausgabelänge beträgt 128.000 Tokens.

### Was kostet Claude Mythos 5?

Pro Million Tokens kostet die Eingabe $10,00 und die Ausgabe $50,00. Cache-Eingabe kostet $1,00 pro Million.

### Wann wurde Claude Mythos 5 veröffentlicht?

Das Veröffentlichungsdatum ist nicht bestätigt. Signal Forge erfasste das Modell erstmals am 2026-10-07.

## Zeitverlauf

- 2026-07-01T13:44:59.000Z · [Alex Getman](https://alexgetman.com/21/claude-fable-is-back/)
> Claude Fable is back!
> 
> Anthropic has lifted restrictions on Claude Fable 5 and Mythos 5 after a decision by the US government.
> 
> Fable will be available to Claude users again starting today.
> 
> Until July 7, the model is included in weekly limits. After that, access will move to API.
> 
> The restriction started after an Amazon report: researchers found a way to bypass Fable’s safeguards in cybersecurity tasks.
> 
> Anthropic says the bypass did not unlock Mythos-level capabilities. The company has already added a new safety classifier that blocks this method in more than 99% of cases.
> 
> Anthropic is also preparing a common standard for evaluating AI jailbreaks.
- 2026-07-24T18:30:37.661Z · [Alex Getman](https://alexgetman.com/110/be-like-dario-amodei/)
> Be like Dario Amodei
> 
> > Spend months warning everyone about Mythos 5
> 
> > Then release a nerfed version called Fable 5
> 
> > Send everyone into a panic
> 
> > Then start wondering whether to shut the model down entirely
> 
> > A couple of weeks later, drop Opus 5
> 
> > Which beats Fable at half the price
- 2026-10-07T19:43:10.391Z · [Claude Code · changelog](https://code.claude.com/docs/en/changelog)
- 2026-11-13T17:22:56.107Z · [Anthropic · official articles](https://www.anthropic.com/news/claude-opus-5)
- 2026-11-13T20:13:42.616Z · [Anthropic · official articles](https://www.anthropic.com/news/improving-alignment-security-efforts)

## Beleglinks

- [editorial](https://alexgetman.com/110/be-like-dario-amodei/)
- [editorial](https://alexgetman.com/21/claude-fable-is-back/)
- [claude-code-changelog](https://code.claude.com/docs/en/changelog)
- [anthropic-pricing](https://platform.claude.com/docs/en/about-claude/pricing)
- [anthropic-model-index](https://platform.claude.com/docs/en/models/mythos-5/overview)
- [anthropic-articles](https://www.anthropic.com/news/claude-opus-5)
- [anthropic-articles](https://www.anthropic.com/news/improving-alignment-security-efforts)

## Signale