starcoder2-15B: benchmark results

BigCode's StarCoder2-15B, a 15B code model trained on 600+ programming languages from The Stack v2 using Fill-in-the-Middle over 4+ trillion tokens, not an instruction-following model. Provider: BigCode. Released 2024-02-28. Access: Open.

Aggregate Rating 1293 ± 16, rank #1495 of 1656 rated models, from 44 benchmark results.

Strongest benchmark results

BenchmarkScoreMetricPercentile
EffiBench - NET2.59Normalized Execution Time100
EffiBench - NMU1.71Normalized Memory Usage100
ShaderMatch18.78Clone Match Rate (%)100
CanItEdit (Descriptive)41.95pass@1 (%; share of the 105 hand-written Python editing prob70.8
CRUXEval47.1Output Prediction pass@1 (%)66.7
CanItEdit (Lazy)31.48pass@1 (%; share of the 105 hand-written Python editing prob66.7
DomainCodeBench88.96Composite Score (%)66.7
Open LLM Leaderboard v1 - GSM8K52.24Accuracy (%) (5-shot)64.1
GSM8K57.7Accuracy (%)61.3
Big Code Memorization - HumanEval-ET pass@140.24HumanEval-ET pass@1 (%)52.9
EvoEval Tool Use48Pass@1 (%)51
BigCode Models Leaderboard44.1HumanEval Python Pass@1 (%)49.2

Interactive version: theaggregate.ai/model?slug=starcoder2-15b · How It Works · Data refreshed daily, snapshot 2026-10-20.