Compare · ModelsLive · 2 picked · head to head
Claude Opus 5.5 vs GPT-5.4
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Claude Opus 5.5 wins on 15/16 benchmarks
Claude Opus 5.5 wins 15 of 16 shared benchmarks. Leads in speed · agentic · reasoning.
Category leads
speed·Claude Opus 5.5agentic·Claude Opus 5.5reasoning·Claude Opus 5.5general·Claude Opus 5.5math·Claude Opus 5.5knowledge·GPT-5.4coding·Claude Opus 5.5
Hype vs Reality
Attention vs performance
Claude Opus 5.5
#3 by perf·#9 by attention
GPT-5.4
#104 by perf·#4 by attention
Best value
Claude Opus 5.5
1.1x better value than GPT-5.4
Claude Opus 5.5
6.9 pts/$
$12.00/M
GPT-5.4
6.0 pts/$
$8.75/M
Vendor risk
Who is behind the model
Anthropic
$965.0B·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
16 benchmarks · 2 models
Claude Opus 5.5GPT-5.4
Artificial Analysis · Quality Index
Claude Opus 5.5 leads by +0.4
Claude Opus 5.5
57.6
GPT-5.4
57.2
APEX-Agents
Claude Opus 5.5 leads by +21.1
APEX-Agents · evaluates AI agents on complex, multi-step tasks requiring planning, tool use, and autonomous decision-making in realistic environments.
Claude Opus 5.5
73.5
GPT-5.4
52.4
ARC-AGI
Claude Opus 5.5 leads by +3.8
ARC-AGI · the original Abstraction and Reasoning Corpus, testing whether AI can solve novel visual pattern recognition tasks without memorization.
Claude Opus 5.5
97.5
GPT-5.4
93.7
ARC-AGI-2
Claude Opus 5.5 leads by +18.5
ARC-AGI-2 · the second iteration of the Abstraction and Reasoning Corpus, testing novel pattern recognition and abstract reasoning without prior training data.
Claude Opus 5.5
92.5
GPT-5.4
74.0
Dtbench
Claude Opus 5.5 leads by +7.5
Claude Opus 5.5
98.2
GPT-5.4
90.7
Ebr Bench
Claude Opus 5.5 leads by +46.0
Claude Opus 5.5
71.4
GPT-5.4
25.4
FrontierMath-Tier-4-v2-Private
Claude Opus 5.5 leads by +46.0
Claude Opus 5.5
95.0
GPT-5.4
49.0
FrontierMath-Tiers-1-3-v2-Private
Claude Opus 5.5 leads by +12.6
Claude Opus 5.5
91.2
GPT-5.4
78.6
Furniture Assembly
Claude Opus 5.5 leads by +65.5
Claude Opus 5.5
76.2
GPT-5.4
10.7
GPQA diamond
GPT-5.4 leads by +3.6
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
Claude Opus 5.5
87.5
GPT-5.4
91.1
Lmca
Claude Opus 5.5 leads by +19.1
Claude Opus 5.5
80.3
GPT-5.4
61.1
Mirrorcode
Claude Opus 5.5 leads by +61.8
Claude Opus 5.5
77.4
GPT-5.4
15.6
Mystery Game Puzzles
Claude Opus 5.5 leads by +37.4
Claude Opus 5.5
68.0
GPT-5.4
30.6
OTIS Mock AIME 2024-2025
Claude Opus 5.5 leads by +2.2
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
Claude Opus 5.5
100.0
GPT-5.4
97.8
Proofbench
Claude Opus 5.5 leads by +44.0
Claude Opus 5.5
100.0
GPT-5.4
56.0
SimpleQA Verified
Claude Opus 5.5 leads by +27.1
SimpleQA Verified · short factual questions with verified answers, measuring factual accuracy and the tendency to hallucinate or provide incorrect information.
Claude Opus 5.5
72.2
GPT-5.4
45.1
Full benchmark table
| Benchmark | Claude Opus 5.5 | GPT-5.4 |
|---|---|---|
Artificial Analysis · Quality Index | 57.6 | 57.2 |
APEX-Agents APEX-Agents · evaluates AI agents on complex, multi-step tasks requiring planning, tool use, and autonomous decision-making in realistic environments. | 73.5 | 52.4 |
ARC-AGI ARC-AGI · the original Abstraction and Reasoning Corpus, testing whether AI can solve novel visual pattern recognition tasks without memorization. | 97.5 | 93.7 |
ARC-AGI-2 ARC-AGI-2 · the second iteration of the Abstraction and Reasoning Corpus, testing novel pattern recognition and abstract reasoning without prior training data. | 92.5 | 74.0 |
Dtbench | 98.2 | 90.7 |
Ebr Bench | 71.4 | 25.4 |
FrontierMath-Tier-4-v2-Private | 95.0 | 49.0 |
FrontierMath-Tiers-1-3-v2-Private | 91.2 | 78.6 |
Furniture Assembly | 76.2 | 10.7 |
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 87.5 | 91.1 |
Lmca | 80.3 | 61.1 |
Mirrorcode | 77.4 | 15.6 |
Mystery Game Puzzles | 68.0 | 30.6 |
OTIS Mock AIME 2024-2025 OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills. | 100.0 | 97.8 |
Proofbench | 100.0 | 56.0 |
SimpleQA Verified SimpleQA Verified · short factual questions with verified answers, measuring factual accuracy and the tendency to hallucinate or provide incorrect information. | 72.2 | 45.1 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $4.00 | $20.00 | 1.0M tokens (~500 books) | $80.00 | |
| $2.50 | $15.00 | 1.1M tokens (~525 books) | $56.25 |