# FinSearchComp Task 3: Complex Historical Investigation (FinSearchComp (T3))

> The hardest task of FinSearchComp, an open financial search and reasoning benchmark for end-to-end agents: multi-step investigations over historical market and company data that mirror a financial analyst's research workflow.

Canonical page: https://benchlm.ai/benchmarks/finsearchcompt3

- Category: [Agentic](/agentic)
- Last updated: November 13, 2026

## About FinSearchComp (T3)

- Year: 2025
- Tasks: Complex historical financial investigation questions (T3 subset of 635 total)
- Format: Accuracy (%)
- Difficulty: Multi-step financial search and reasoning
- Paper: [FinSearchComp: Towards a Realistic, Expert-Level Evaluation of Financial Search and Reasoning](https://arxiv.org/abs/2509.13160)

ByteDance Seed released FinSearchComp in September 2025 with 635 expert-annotated questions over global and Greater China markets, split into Time-Sensitive Data Fetching (T1), Simple Historical Lookup (T2) and Complex Historical Investigation (T3). Seventy professional financial experts annotated the tasks. Meituan reports LongCat-2.5 at 63.4 on T3 in its November 2026 model card, next to in-house runs of GPT-5.5 and GPT-5.6 Sol (62.2 each), Claude Opus 5 (64.0), GLM-5.3 (62.2), Kimi K3 (64.0) and DeepSeek V4.1 Flash (64.3). BenchLM stores the LongCat-2.5 row; the other figures are Meituan runs listed for context.

FinSearchComp (T3) is currently displayed on BenchLM for reference, but it is excluded from the weighted scoring formula.

## Leaderboard (1 models)

The one result on this page was reported by the lab that built the model.

| Rank | Model | Creator | Score | Who ran it |
|------|-------|---------|-------|-----------|
| 1 | [LongCat-2.5](/models/longcat-2-5) | Meituan | 63.4% | Reported by Meituan |

## FAQ

### What does FinSearchComp (T3) measure?

The hardest task of FinSearchComp, an open financial search and reasoning benchmark for end-to-end agents: multi-step investigations over historical market and company data that mirror a financial analyst's research workflow.

### Which model scores highest on FinSearchComp (T3)?

LongCat-2.5 by Meituan currently leads with a score of 63.4% on FinSearchComp (T3).

### How many models are evaluated on FinSearchComp (T3)?

1 AI models have published results on FinSearchComp (T3) in the BenchLM catalog.

### Does FinSearchComp (T3) affect BenchLM's overall score?

Not directly. FinSearchComp (T3) is still displayed on BenchLM for reference, but it is excluded from the weighted scoring formula.