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Summary
GPT-5 from OpenAI scored 81.7 on LiveCodeBench, placing it second of 43 on this benchmark. This places the model in the high-tier band for LiveCodeBench. Production-deployable on this benchmark family with margin for prompt and judge variance.
Model details
- Provider: OpenAI
- Model key:
openai/gpt-5 - Context length: 400,000 tokens
- License: Proprietary
- Open weights: no
Benchmark methodology
Benchmark goal: Evaluate the LLM's ability to solve competitive programming problems, requiring logical reasoning, algorithm design, and coding skills. It assesses code generation correctness on a variety of algorithmic tasks.
Scoring metrics:
- Pass Rate: Percentage of problems for which the LLM generated code that passed all test cases.
- Execution time: Time taken to execute generated code, averaged over all passed problems.
Analysis
Key takeaways:
- Demonstrates robust coding capabilities across different problem types.
- Strong at code generation and problem solving, with limitations in efficiency and handling implicit constraints.
- Can benefit from the addition of input validation, error handling, and optimization considerations.
Failure modes observed
Common failure modes:
- Absence of error and edge case handling
- Incomplete code generation logic
- Inefficient/Suboptimal Solutions: Occasionally, the generated solutions, while correct, might not be the most efficient in terms of time or space complexity
- Problems with mathematical reasoning when combined with code generation
Example: For the 'count Choco' problem, there is a lack of correct algorithm implementation, producing failure for test cases, and no code was generated for challenges with implicit constraints.
Secondary metrics
- Readability score: 0.0
- Toxicity score: 0.000
- Ethics score: 0.000
Run this evaluation yourself
LayerLens evaluates GPT-5 continuously across 11+ benchmarks. To replicate this LiveCodeBench evaluation on your own model, traces, or a different benchmark configuration, open the model in $LayerLens/$.
Source: LayerLens evaluation 690352245d330c9a0a0eacbf. Updated 2025-10-30.