THE SCOREBOARD FOR WHAT'S NEXTAI + QUANTUM, SCORED. COMPARED. EXPLAINED.
AIQUANTUMSCORE.

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01 / SCORECARD

Coding focus · side by side

MetricClaude Fable 5.1DeepSeek V4.1 Flash
Quantum Score60QUANTUM SCORE63QUANTUM SCORE
Confidence / coverageModerate confidence · 85% · 3 independent domainsModerate confidence · 85% · 3 independent domains
Context window1,000,000 tokens1,000,000 tokens
Modalities / toolstext, image · tool use, visiontext, image · vision, tool use
Coding4355 +12 vs first
Reasoning9292 +0 vs first
Math9969 -30 vs first
Research——
Agents40100 +60 vs first
Multimodal690 -69 vs first
Speed——
Value2360 +37 vs first
Input / 1M$10.00$0.30
Output / 1M$50.00$1.20
Measured output speed——

02 / EVIDENCE

Published benchmark evidence

BenchmarkClaude Fable 5.1DeepSeek V4.1 Flash
LiveBench code_completion · 2026-06-25 · Public table; published model effort variant82.609 %
benchmark maintainer ↗
82.609 %
benchmark maintainer ↗
LiveBench code_generation · 2026-06-25 · Public table; published model effort variant90.141 %
benchmark maintainer ↗
77.465 %
benchmark maintainer ↗
LiveBench javascript · 2026-06-25 · Public table; published model effort variant68.182 %
benchmark maintainer ↗
81.818 %
benchmark maintainer ↗
LiveBench AMPS_Hard · 2026-06-25 · Public table; published model effort variant99 %
benchmark maintainer ↗
98 %
benchmark maintainer ↗
LiveBench olympiad · 2026-06-25 · Public table; published model effort variant92.968 %
benchmark maintainer ↗
89.081 %
benchmark maintainer ↗
LiveBench theory_of_mind · 2026-06-25 · Public table; published model effort variant80.769 %
benchmark maintainer ↗
80.769 %
benchmark maintainer ↗
LiveBench zebra_puzzle · 2026-06-25 · Public table; published model effort variant100 %
benchmark maintainer ↗
100 %
benchmark maintainer ↗
MMMU-Pro Mercor public leaderboard · MMMU-Pro Mercor public set · Mercor independent evaluation83.9 %
independent lab ↗
76.6 %
independent lab ↗
MedXpertQA MM Mercor public leaderboard · MedXpertQA MM Mercor 200 public tasks · Mercor independent evaluation79.7 %
independent lab ↗
63.5 %
independent lab ↗

AS THE EVIDENCE CHANGED

Comparison history

Dated releases, price events, and benchmark publications. A price or test change can alter the factual comparison; this timeline does not pick a winner.

2026-09-10 · DeepSeek V4.1 Flash released ↗ · source

2026-09-01 · Claude Fable 5.1 released ↗ · source

2026-09-30 verified (test date not published) · claude-fable-5-1 entered LiveBench code_completion (2026-06-25) at 82.609 % · source ↗

2026-09-30 verified (test date not published) · claude-fable-5-1 entered LiveBench code_generation (2026-06-25) at 90.141 % · source ↗

2026-09-30 verified (test date not published) · claude-fable-5-1 entered LiveBench javascript (2026-06-25) at 68.182 % · source ↗

2026-09-30 verified (test date not published) · claude-fable-5-1 entered LiveBench AMPS_Hard (2026-06-25) at 99 % · source ↗

2026-09-30 verified (test date not published) · claude-fable-5-1 entered LiveBench olympiad (2026-06-25) at 92.968 % · source ↗

2026-09-30 verified (test date not published) · claude-fable-5-1 entered LiveBench theory_of_mind (2026-06-25) at 80.769 % · source ↗

2026-09-30 verified (test date not published) · claude-fable-5-1 entered LiveBench zebra_puzzle (2026-06-25) at 100 % · source ↗

2026-09-30 verified (test date not published) · deepseek-v4-1-flash entered LiveBench code_completion (2026-06-25) at 82.609 % · source ↗

2026-09-30 verified (test date not published) · deepseek-v4-1-flash entered LiveBench code_generation (2026-06-25) at 77.465 % · source ↗

2026-09-30 verified (test date not published) · deepseek-v4-1-flash entered LiveBench javascript (2026-06-25) at 81.818 % · source ↗

2026-09-30 verified (test date not published) · deepseek-v4-1-flash entered LiveBench AMPS_Hard (2026-06-25) at 98 % · source ↗

2026-09-30 verified (test date not published) · deepseek-v4-1-flash entered LiveBench olympiad (2026-06-25) at 89.081 % · source ↗

An overall score appears only after enough current, comparable, independently sourced results exist. Pricing and individual benchmark results remain visible meanwhile.