LLM Comparison

DeepSeek V4.1 Flash vs LongCat 2.0: benchmark scores, pricing & comparison.

Side-by-side DeepSeek V4.1 Flash vs LongCat 2.0 comparison across SWE-bench, GPQA, HLE, Terminal-Bench, coding agent scores, token pricing, context window, and AskClash RWT. Green marks the winner on each benchmark.

Open live leaderboardDeepSeek V4.1 Flash model pageLongCat 2.0 model page
Rank #22 vs #37AskClash overall scores 61.7 vs 53.1.
Pricing $0.15/$0.60 vs $0.75/$2.95Input and output token prices per 1M tokens when published.
API vs Open WeightDeepSeek vs Meituan.

DeepSeek V4.1 Flash vs LongCat 2.0 benchmark comparison

Green cells highlight the winning model for each metric. Scores are cached from the AskClash LLM leaderboard snapshot.

MetricDeepSeek V4.1 FlashLongCat 2.0
Overall Score61.753.1
Leaderboard Rank#22#37
HLE36.833.7
GPQA90.988.9
IFEval—90.0
SWE-Pro—59.5
Terminal-Bench90.670.8
DeepSWE74.2—
GDPval-AA—964.5
Tau2—88.2
Input Price (per 1M tokens)$0.15$0.75
Output Price (per 1M tokens)$0.60$2.95
Context Window1M1M
Benchmarks Published48

DeepSeek V4.1 Flash vs LongCat 2.0 head-to-head charts

DeepSeek V4.1 Flash leads 4 and LongCat 2.0 leads 0 of 4 shared benchmarks. DeepSeek V4.1 Flash is cheaper on a defined 1M-input / 200K-output workload. Charts show only benchmarks both models publish.

DeepSeek V4.1 FlashLongCat 2.0
Overall
61.7DeepSeek V4.1 Flash
53.1LongCat 2.0
HLE
36.8DeepSeek V4.1 Flash
33.7LongCat 2.0
GPQA
90.9DeepSeek V4.1 Flash
88.9LongCat 2.0
Terminal-Bench
90.6DeepSeek V4.1 Flash
70.8LongCat 2.0
DeepSeek V4.1 Flash
Input$0.15
Output$0.60
Workload$0.27
Context1M
LongCat 2.0
Input$0.75
Output$2.95
Workload$1.34
Context1M

Workload = published cost of 1M input + 200K output tokens. Open the live leaderboard for interactive compare charts.

More DeepSeek V4.1 Flash and LongCat 2.0 comparisons

Explore how DeepSeek V4.1 Flash and LongCat 2.0 stack up against other top-ranked LLMs.

Claude Fable 5.1 vs DeepSeek V4.1 FlashClaude Fable 5.1 vs LongCat 2.0Claude Fable 5 vs DeepSeek V4.1 FlashClaude Fable 5 vs LongCat 2.0Claude Opus 5 vs DeepSeek V4.1 FlashClaude Opus 5 vs LongCat 2.0GPT-5.6 Sol vs DeepSeek V4.1 FlashGPT-5.6 Sol vs LongCat 2.0Qwen3.8 Max vs DeepSeek V4.1 FlashQwen3.8 Max vs LongCat 2.0

How to read this comparison

Benchmark scores

Higher is better for all benchmark scores (SWE-bench, GPQA, HLE, Terminal-Bench, etc.). Green marks the model with the higher score.

Token pricing

Lower is better for input and output prices. Green marks the cheaper model per 1M tokens.

Coverage matters

Models with fewer disclosed benchmark cells may have inflated percentile scores. Check the benchmark cell count for context.

This comparison page is generated from the AskClash LLM leaderboard cache. Open the live leaderboard for real-time scores and interactive filtering.