LLM Comparison

Claude Opus 4.8 vs DeepSeek V4 Flash 0731: benchmark scores, pricing & comparison.

Side-by-side Claude Opus 4.8 vs DeepSeek V4 Flash 0731 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 leaderboardClaude Opus 4.8 model pageDeepSeek V4 Flash 0731 model page
Rank #5 vs #16AskClash overall scores 75.6 vs 56.1.
Pricing $5.00/$25.0 vs $0.14/$0.28Input and output token prices per 1M tokens when published.
Proprietary vs Open WeightAnthropic vs DeepSeek.

Claude Opus 4.8 vs DeepSeek V4 Flash 0731 benchmark comparison

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

MetricClaude Opus 4.8DeepSeek V4 Flash 0731
Overall Score75.656.1
Leaderboard Rank#5#16
RWT9.0—
Coding Agent Index72.5—
HLE57.937.0
GPQA93.691.0
MATH-500—57.4
IFEval62.2—
SWE-bench88.679.0
SWE-Pro69.2—
SWE-Atlas82.5—
Terminal-Bench74.682.7
DeepSWE59.054.4
OSWorld83.4—
MCP Atlas82.269.0
Finance Agent53.9—
CharXiv89.9—
ARC-AGI 272.1—
Tau294.4—
MRCR—78.7
Input Price (per 1M tokens)$5.00$0.14
Output Price (per 1M tokens)$25.0$0.28
Context Window1M1M
Benchmarks Published189

Claude Opus 4.8 vs DeepSeek V4 Flash 0731 head-to-head charts

Claude Opus 4.8 leads 6 and DeepSeek V4 Flash 0731 leads 1 of 7 shared benchmarks. DeepSeek V4 Flash 0731 is cheaper on a defined 1M-input / 200K-output workload. Charts show only benchmarks both models publish.

Claude Opus 4.8DeepSeek V4 Flash 0731
Overall
75.6Claude Opus 4.8
56.1DeepSeek V4 Flash 0731
HLE
57.9Claude Opus 4.8
37.0DeepSeek V4 Flash 0731
GPQA
93.6Claude Opus 4.8
91.0DeepSeek V4 Flash 0731
SWE-bench
88.6Claude Opus 4.8
79.0DeepSeek V4 Flash 0731
Terminal-Bench
74.6Claude Opus 4.8
82.7DeepSeek V4 Flash 0731
DeepSWE
59.0Claude Opus 4.8
54.4DeepSeek V4 Flash 0731
MCP Atlas
82.2Claude Opus 4.8
69.0DeepSeek V4 Flash 0731
Claude Opus 4.8
Input$5.00
Output$25.0
Workload$10
Context1M
DeepSeek V4 Flash 0731
Input$0.14
Output$0.28
Workload$0.20
Context1M

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

More Claude Opus 4.8 and DeepSeek V4 Flash 0731 comparisons

Explore how Claude Opus 4.8 and DeepSeek V4 Flash 0731 stack up against other top-ranked LLMs.

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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.