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Evidence-based comparison

o3 (2025-04-16) vs o4-mini (2025-04-16)

Compare the configurations using only independent benchmarks where both have published results under the same version and methodology.

OpenAIversusOpenAIChecked August 13, 2026
Like-for-like results

Shared benchmark scores

No cross-benchmark averaging. A higher score is better for every comparison shown below.

Benchmarko3 (2025-04-16)o4-mini (2025-04-16)
HELM Capabilities0.8110.812
HELM Safety0.9820.973
Arena-Hard v2.0 Preview85.9%74.6%

o3 (2025-04-16)

Published by OpenAI. This profile currently contains 3 independently sourced benchmark results.

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o4-mini (2025-04-16)

Published by OpenAI. This profile currently contains 4 independently sourced benchmark results.

View model profile →
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