Claude Fable 5
Anthropic · Frontier
Anthropic's most powerful model — a new Mythos-class tier above Opus, aimed at the hardest reasoning and agentic work.
- Strengths
- Top-end reasoning and long-horizon agentic autonomy — the most capable model in the catalogue.
- Best for
- The hardest research, coding and multi-step agent tasks where capability outweighs cost.
- Limitations
- The most expensive option; overkill for routine or high-volume work.
Input / 1M
$10.00
Output / 1M
$50.00
Cached input / 1M
$1.00
Context window
1M
Where it sits
22nd-cheapest frontier model
by blended $/Mtok among 24 listed frontier models
452% above the frontier median
blended $/Mtok across 24 frontier models
Output costs 5× input
$10.00 in / $50.00 out per 1M
Cached input saves 90%
$1.00 vs $10.00 per 1M fresh
Held flat since launch (Jun 2026)
no blended price change recorded
Computed live from current prices and this model's history — not hand-written, so it stays accurate as prices move.
Price history
Only one price on record so far — the history chart appears once a price changes.
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 9 Jun 2026 | $10.00 | $50.00 | $1.00 | List price | anthropic.com/pricing |