Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Fable 5
96
DeepSeek V4 Flash (High)
71
Verified leaderboard positions: Claude Fable 5 #2 · DeepSeek V4 Flash (High) #27
Pick Claude Fable 5 if you want the stronger benchmark profile. DeepSeek V4 Flash (High) only becomes the better choice if you want the cheaper token bill.
Agentic
+29.8 difference
Coding
+13.4 difference
Knowledge
+17.6 difference
Claude Fable 5
DeepSeek V4 Flash (High)
$10 / $50
$0.14 / $0.28
N/A
N/A
N/A
N/A
1M+
1M
Pick Claude Fable 5 if you want the stronger benchmark profile. DeepSeek V4 Flash (High) only becomes the better choice if you want the cheaper token bill.
Claude Fable 5 is clearly ahead on the provisional aggregate, 96 to 71. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude Fable 5's sharpest advantage is in agentic, where it averages 85.2 against 55.4. The single biggest benchmark swing on the page is HLE, 64.5% to 29.4%.
Claude Fable 5 is also the more expensive model on tokens at $10.00 input / $50.00 output per 1M tokens, versus $0.14 input / $0.28 output per 1M tokens for DeepSeek V4 Flash (High). That is roughly 178.6x on output cost alone. Claude Fable 5 gives you the larger context window at 1M+, compared with 1M for DeepSeek V4 Flash (High).
Claude Fable 5 is ahead on BenchLM's provisional leaderboard, 96 to 71. The biggest single separator in this matchup is HLE, where the scores are 64.5% and 29.4%.
Claude Fable 5 has the edge for knowledge tasks in this comparison, averaging 74.8 versus 57.2. Inside this category, HLE is the benchmark that creates the most daylight between them.
Claude Fable 5 has the edge for coding in this comparison, averaging 85.6 versus 72.2. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.
Claude Fable 5 has the edge for agentic tasks in this comparison, averaging 85.2 versus 55.4. Inside this category, GDPval-AA is the benchmark that creates the most daylight between them.
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