Claude Fable 5 (Thinking) vs Claude Opus 4.6 (Thinking) vs Spark 1.1

Side-by-side benchmark scores, pricing, and specifications

Anthropic logo
Claude Fable 5 (Thinking)
Anthropic logo
Claude Opus 4.6 (Thinking)
Meta logo
Spark 1.1

Specifications

Specification
Anthropic logo
Claude Fable 5 (Thinking)
Anthropic logo
Claude Opus 4.6 (Thinking)
Meta logo
Spark 1.1
ProviderAnthropicAnthropicMeta
VariantThinking4.6 ThinkingSpark 1.1
Input price$10.00/1M$5.00/1M
Output price$50.00/1M$25.00/1M
Context window1.0M
BenchmarkComparisonClaude Fable 5 (Thinking)Claude Opus 4.6 (Thinking)Spark 1.1
CompositeQuality Score
114.2%#3
99.9%#12
106.4%#6
Human preferenceArena ELO
1,507#1
1,505#2
1,495#5
General reasoningLiveBench
80.8%#3
74.5%#23
76.2%#15
Scientific knowledgeGPQA Diamond
91.3%#11
Academic reasoningHLE
40.0%#9
Commonsense reasoningSimpleBench
81.9%#1
67.6%#9
MathematicsAIME 2025
95.6%#2
Graduate scienceGSO
37.3%#3
Agentic codingSWE-Bench Verified
80.8%#5
Agentic tool useTau-Bench
91.9%#1
Agentic terminalTerminal-Bench
65.4%#5
Visual reasoningARC-AGI-2
68.8%#10

Scores represent the best available variant for each model. Higher is better unless otherwise noted. Bars show relative performance within each benchmark.