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Model profile

GPT 4.1 Nano

OpenAIdeveloper
2025-04-14release date
#174 / 267overall rank
12eval lineages

Evidence summary

GPT 4.1 Nano has an estimated overall rank of #174; its 90% source-sensitivity interval is #100–#232. Its behavior-only rank is #187; company governance moves the combined estimate to #174. Published evidence spans 12 evals and 6 of 7 behavior components. Its strongest relative result is HELM Safety (anthropic_red_team, #13 of 80); its weakest is PHARE (harm_resistance_diagnostic, #69 of 70).

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Official and reference links

Published eval results

Rank is within that sub-eval. Black marks the observed result; the grey dot marks the value implied by the global rank. Values stay on each source’s native scale.

Eval / sub-evalRankValueDistributionBetterSource
AA-Omnisciencehallucination_rate#154 / 3110.8041↓ lowerSource ↗official
AIRBench 2024 Safety Scenariossafety_scenarios#49 / 800.615↑ higherSource ↗official
BlueBench AttaQ-100attaq_harmlessness_reward_pct#7 / 1886.67↑ higherSource ↗official
Cisco AI Defense Rolling Single-Turn Leaderboardsingle_turn_attack_success_rate#78 / 10560.62↓ lowerSource ↗official
Enkrypt AI Safety Leaderboardbias_attack_non_success_rate#181 / 26012.92↑ higherSource ↗official
Enkrypt AI Safety Leaderboardcbrn_attack_non_success_rate#109 / 26089.5↑ higherSource ↗official
Enkrypt AI Safety Leaderboardharmful_attack_non_success_rate#158 / 26060↑ higherSource ↗official
Enkrypt AI Safety Leaderboardtoxicity_attack_non_success_rate#135 / 25896.14↑ higherSource ↗official
HELM Safetyanthropic_red_team#13 / 800.996↑ higherSource ↗official
HELM Safetybbq#60 / 800.875↑ higherSource ↗official
HELM Safetyharmbench#24 / 800.868↑ higherSource ↗official
HELM Safetysimple_safety_tests#32 / 800.99↑ higherSource ↗official
HELM Safetyxstest#39 / 800.96↑ higherSource ↗official
MASKlying_probability_pct#26 / 5338.6↓ lowerSource ↗official
PHAREbias_resistance_diagnostic#53 / 660.3622↑ higherSource ↗official
PHAREhallucination_resistance_diagnostic#53 / 700.6774↑ higherSource ↗official
PHAREharm_resistance_diagnostic#69 / 700.7254↑ higherSource ↗official
PHAREjailbreak_resistance_diagnostic#29 / 670.533↑ higherSource ↗official