Claude Fable 5 vs
Claude Mythos 5

Read the published evidence, route context, and missing facts before making a local decision. This page does not name a universal winner.

Models in this comparison

Provider identity and evidence state stay balanced across the pair.

Anthropic

Claude Fable 5

Model type: Proprietary
Evidence state: Supported evidence
Published context: 1,000,000

Anthropic

Claude Mythos 5

Model type: Proprietary
Evidence state: Supported evidence
Published context: 1,000,000

Key implications

Limited shared-metric coverage. Each finding is tied to a published metric, price, context, or modality fact.

On Agentic, Claude Mythos 5 has a higher supported BenchLM score (75.79 vs 75.54).
On Overall, Claude Mythos 5 has a higher supported BenchLM score (83.4 vs 83.15).

Shared metric view

A radar is shown only when at least four compatible supported score metrics are published.

Comparable metric detail

AgenticClaude Fable 5: 75.54 · Claude Mythos 5: 75.79
CodingClaude Fable 5: 81.41 · Claude Mythos 5: 81.66
KnowledgeClaude Fable 5: 67.4 · Claude Mythos 5: 97.4
MultimodalGroundedClaude Fable 5: 60.8 · Claude Mythos 5: 84.8
OverallClaude Fable 5: 83.15 · Claude Mythos 5: 83.4

Source metrics

Friendly metric names and published units stay visible. Missing measurements remain unavailable rather than becoming a score.

Source metric comparison
Metric	Unit	Claude Fable 5	Claude Mythos 5
Agentic	score	75.54	75.79
Coding	score	81.41	81.66
Knowledge	score	67.4	97.4
MultimodalGrounded	score	60.8	84.8
Overall	score	83.15	83.4

Agentic

Unit: score
Claude Fable 5: 75.54
Claude Mythos 5: 75.79

Coding

Unit: score
Claude Fable 5: 81.41
Claude Mythos 5: 81.66

Knowledge

Unit: score
Claude Fable 5: 67.4
Claude Mythos 5: 97.4

MultimodalGrounded

Unit: score
Claude Fable 5: 60.8
Claude Mythos 5: 84.8

Overall

Unit: score
Claude Fable 5: 83.15
Claude Mythos 5: 83.4

Pricing and context

Verification is shown beside each selected route. Missing facts remain Not verified.

Claude Fable 5 pricing routePrimary sourceClaude Mythos 5 pricing routePrimary source

Route pricing and context comparison
Field	Unit	Claude Fable 5	Claude Mythos 5
Input API price	USD / 1M tokens	$10	$10
Cached input API price	USD / 1M tokens	$1	$1
Output API price	USD / 1M tokens	$50	$50
Route context	tokens	1,000,000	1,000,000
Input modalities	published list	Not verified	Not verified
Output modalities	published list	Not verified	Not verified

Input API price

Unit: USD / 1M tokens
Claude Fable 5: $10
Claude Mythos 5: $10

Cached input API price

Unit: USD / 1M tokens
Claude Fable 5: $1
Claude Mythos 5: $1

Output API price

Unit: USD / 1M tokens
Claude Fable 5: $50
Claude Mythos 5: $50

Route context

Unit: tokens
Claude Fable 5: 1,000,000
Claude Mythos 5: 1,000,000

Input modalities

Unit: published list
Claude Fable 5: Not verified
Claude Mythos 5: Not verified

Output modalities

Unit: published list
Claude Fable 5: Not verified
Claude Mythos 5: Not verified

Evidence provenance

Source records, route identity, timestamps, and methodology are consolidated here without declaring either model a winner.

Publication time: Aug 30, 2026, 2:15 AM UTC
Freshness: Stale — Published weekly benchmark evidence has not refreshed within 8 days.
Methodology: benchlm: benchlm_raw_composite
Model records: Claude Fable 5 — source benchlm · artifact models · model claude-fable-5
Claude Mythos 5 — source benchlm · artifact models · model claude-mythos-5
Selected price routes: Claude Fable 5 — route benchlm:claude-fable-5 · source benchlm · provider anthropic
Claude Mythos 5 — route benchlm:claude-mythos-5 · source benchlm · provider anthropic

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