Llama 5 405B

Llama 5 405B

meta· llamahealthy

Llama 5 405B: curated reference profile, Llama Community License license

Llama 5 405B: curated reference profile drawn from the model's published reports. Not a Supermagin measurement. Run the official eval in the Studio to earn a verified score.

Meta+9% net improvement

Curated reference profile · not a Supermagin measurement

Model card & documentation

Llama 5 405B

Curated reference profile · Llama Community License license · v5.0 · 1.3s latency

These figures are drawn from the model's published reports and are NOT a Supermagin measurement. Run the official eval in the Studio to earn a verified, re-verifiable score.

Capabilities

  • reasoning: 89%
  • multimodal: 88%
  • coding: 87%
  • agent: 86%

Notes

  • Low hallucination rate on audited evals.
  • Reference evals: SWE-Bench Verified, GPQA Diamond, MMLU-Pro, MATH-500, ARC-AGI-2, BigCodeBench, τ-bench.

Pooled score

0%

credibility 100% · consistency 0.96

Score trend across attested runs

47510 total samples

More attested runs are needed to show a trend.

Category scores

reasoning
89%
coding
87%
agent
86%
multimodal
88%
cybersecurity
83%

Progress by year

2023
74%
2024
82%
2025
88%
2026
91%

Success rate

0%

Failure rate

0%

Hallucination

0%

Avg latency

1300ms

per task

Avg cost

$0.0040

per task

Calibration gap

+0.11

positive = overconfident

Top failure signals

hallucination ×1188logic_flaw ×2185instruction_failure ×1639

Pooled brain diagnostics

Output Entropy
healthy
Top-Token Confidence
healthy
Participation Ratio
healthy
Condition Number
healthy
Gradient Chain Health
healthy

Failure rate by task type

code
14%16629
qa
9%14253
reasoning
12%9502
classification
10%7127

Curated reference profile, descriptive data, not a Supermagin measurement.