Claude Mythos 5 vs
GLM-5.1

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.

A
Model type
Proprietary
Evidence state
Supported evidence
Published context
1,000,000
VS
Z
Model type
Open Weight
Evidence state
Supported evidence
Published context
203,000

Key implications

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

  1. On Agentic, Claude Mythos 5 has a higher supported BenchLM score (75.79 vs 45.33).
  2. On Overall, Claude Mythos 5 has a higher supported BenchLM score (83.4 vs 67.04).
  3. Input API price: GLM-5.1 has the lower verified rate ($1.4 / 1M tokens vs $10 / 1M tokens).
  4. Output API price: GLM-5.1 has the lower verified rate ($4.4 / 1M tokens vs $50 / 1M tokens).

Shared metric view

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

Comparable metric detail

  • AgenticClaude Mythos 5: 75.79 · GLM-5.1: 45.33
  • CodingClaude Mythos 5: 81.66 · GLM-5.1: 61.5
  • KnowledgeClaude Mythos 5: 97.4 · GLM-5.1: 75.7
  • MathClaude Mythos 5: Unavailable · GLM-5.1: 64.5
  • MultimodalGroundedClaude Mythos 5: 84.8 · GLM-5.1: Unavailable
  • OverallClaude Mythos 5: 83.4 · GLM-5.1: 67.04

Source metrics

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

Source metric comparison
MetricUnitClaude Mythos 5GLM-5.1
Agenticscore75.7945.33
Codingscore81.6661.5
Knowledgescore97.475.7
MathscoreUnavailable64.5
MultimodalGroundedscore84.8Unavailable
Overallscore83.467.04

Agentic

Unit
score
Claude Mythos 5
75.79
GLM-5.1
45.33

Coding

Unit
score
Claude Mythos 5
81.66
GLM-5.1
61.5

Knowledge

Unit
score
Claude Mythos 5
97.4
GLM-5.1
75.7

Math

Unit
score
Claude Mythos 5
Unavailable
GLM-5.1
64.5

MultimodalGrounded

Unit
score
Claude Mythos 5
84.8
GLM-5.1
Unavailable

Overall

Unit
score
Claude Mythos 5
83.4
GLM-5.1
67.04

Pricing and context

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

Route pricing and context comparison
FieldUnitClaude Mythos 5GLM-5.1
Input API priceUSD / 1M tokens$10$1.4
Cached input API priceUSD / 1M tokens$1Not verified
Output API priceUSD / 1M tokens$50$4.4
Route contexttokens1,000,000203,000
Input modalitiespublished listNot verifiedNot verified
Output modalitiespublished listNot verifiedNot verified

Input API price

Unit
USD / 1M tokens
Claude Mythos 5
$10
GLM-5.1
$1.4

Cached input API price

Unit
USD / 1M tokens
Claude Mythos 5
$1
GLM-5.1
Not verified

Output API price

Unit
USD / 1M tokens
Claude Mythos 5
$50
GLM-5.1
$4.4

Route context

Unit
tokens
Claude Mythos 5
1,000,000
GLM-5.1
203,000

Input modalities

Unit
published list
Claude Mythos 5
Not verified
GLM-5.1
Not verified

Output modalities

Unit
published list
Claude Mythos 5
Not verified
GLM-5.1
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 Mythos 5 — source benchlm · artifact models · model claude-mythos-5
  • GLM-5.1 — source benchlm · artifact models · model glm-5-1
Selected price routes
  • Claude Mythos 5 — route benchlm:claude-mythos-5 · source benchlm · provider anthropic
  • GLM-5.1 — route benchlm:glm-5-1 · source benchlm · provider z-ai

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