LongBench v2 — leaderboard
LongBench v2: Measures long-context retrieval, needle finding, summarization, factual grounding, or retrieval-augmented generation quality.
Metric: Accuracy (%). Source: longbench2.github.io. Status: saturation imminent. 36 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Gemini 2.5 Pro | 63.3 |
| 2 | Gemini 2.5 Flash | 62.1 |
| 3 | Qwen 3 235B A22B (Thinking) | 60.6 |
| 4 | DeepSeek R1 | 58.3 |
| 5 | Qwen 3 235B A22B 2507 Instruct | 58.3 |
| 6 | O1 Preview | 57.7 |
| 7 | DeepSeek R1 0528 | 56.7 |
| 8 | MiniMax-Text-01 | 56.5 |
| 9 | Gemini 2.0 Flash (Thinking) | 56 |
| 10 | GPT-4o | 51.4 |
| 11 | Gemini 2.0 Flash | 51.1 |
| 12 | GLM-4.5 | 50.3 |
| 13 | Qwen 3 235B A22B | 50.1 |
| 14 | Qwen 3 30B A3B 2507 (Thinking) | 50.1 |
| 15 | Qwen 3 32B | 49.2 |
Interactive version: theaggregate.ai/benchmark?slug=longbench-v2 · How the rankings work · Data refreshed daily, snapshot 2026-07-22.