video benchmark
ActivityNet Leaderboard
ActivityNet is a video benchmark for human activity understanding with 203 activity classes, 849 video hours, and untrimmed videos containing activity instances.
Updated Sep 5, 2026
Models1
Model coverage1
MetricScore
EvidenceB
ActivityNet Ranking
Higher score ranks better on this benchmark.
Sort by
Rank | Model | Score | Percentile | Participants | Evidence | Evaluated |
|---|
| Rank01 | ModelOP | Score61.90% | Percentile100.00% | Participants1 | EvidenceC | Evaluated |
ActivityNet Highlights
The leading models and scores on this benchmark.
The Top AI Models for ActivityNet
The first five results on this benchmark, with official price and output speed added where the model identity can be matched.
Ranking basisThis activitynet AI model leaderboard uses descending score in the benchmark original unit. The leaderboard ranking keeps matched price and speed data separate from benchmark evidence.
- 01OPOpenAI
- Score
- 61.90%
- Price
- $2.5 input / $10 output per 1M tokens
- Speed
- Up to 132.00 tok/s via OpenAI
Strengths
- Ranks #1 of 1 compared models
- 100th percentile on this benchmark
- C evidence result
Considerations
- This result measures ActivityNet, not total model capability
Selection summary
Best AI Models for ActivityNet
GPT-4o currently leads ActivityNet with 61.90%. It is the top model on this specific benchmark, while the best LLM for the broader task should also be checked against other benchmarks, price, and runtime.
Use this leaderboard with the supporting benchmark results and coverage details above. A leaderboard position summarizes the selected ranking signal; it does not replace workload-specific testing.
What is ActivityNet?
What ActivityNet measures and how its scores work.
ActivityNet is a large-scale video benchmark covering 203 activity classes and providing samples from untrimmed videos.
It supports comparison of algorithms for untrimmed video classification, trimmed activity classification, and activity detection.
Scores are shown in ratio. This benchmark is not independently verified and has an evidence level of B.
- Family
- ActivityNet
- Modality
- video
- Primary category
- video
- Score direction
- higher
- LLMBoard eligible
- No
- Evaluation key
- overall
LLM Stats. Benchmark scores retain their original unit. Overall score eligibility is shown separately.
FAQ
Common questions about ActivityNet.
Which model scores highest on ActivityNet?
GPT-4o is currently ranked first with 61.90%.
What are the top three models on ActivityNet?
The current leaders are GPT-4o (61.90%).
Which ActivityNet model has the lowest official input price?
GPT-4o has the lowest matched official input price at $2.5 input / $10 output per 1M tokens.
Which models are fastest among ActivityNet results?
The fastest matched records are GPT-4o (132.00 tok/s via OpenAI).
Does the highest score result prove overall model quality?
No. This benchmark measures one defined capability or task. The overall LLMBoard score uses a separate aggregation across eligible benchmark evidence.