AI Models · Compare
Claude 4 Sonnet vs GPT-4o
Side-by-side intelligence, speed, price, benchmarks, strengths and weaknesses.
Head to head
Spec
Claude 4 Sonnet
GPT-4o
Intelligence index↑ better
Winner75
72
Speed↑ better
95 tok/s
Winner110 tok/s
Time to first token↓ better
0.85 s
Winner0.4 s
Context window↑ better
Winner500k
128k
Max output↑ better
16k
Winner16k
Input price↓ better
$3.00 / 1M tokens
Winner$2.50 / 1M tokens
Output price↓ better
$15.00 / 1M tokens
Winner$10.00 / 1M tokens
Blended price↓ better
$6.00 / 1M tokens
Winner$4.38 / 1M tokens
License
Proprietary
Proprietary
Input modalities
text, image
text, image, audio
Output modalities
text
text, audio
Benchmark showdown
MMLU
Claude 4 Sonnet
88.5
GPT-4o
88.7
MMLU Pro
Claude 4 Sonnet
75.2
GPT-4o
73.3
GPQA
Claude 4 Sonnet
58.0
GPT-4o
53.1
MATH
Claude 4 Sonnet
82.0
GPT-4o
76.6
HumanEval
Claude 4 Sonnet
93.2
GPT-4o
90.2
Strengths, weaknesses and best-for
Claude 4 Sonnet
Strengths
- Best $/HumanEval ratio
- Fast
- 500k context
Weaknesses
- Behind Opus on hardest reasoning
Best for
- Production coding tools
- Long-context RAG
- Tool use
GPT-4o
Strengths
- Strong multimodal
- Voice-native
- Mature ecosystem
Weaknesses
- Weaker than GPT-5.5 on reasoning
- Smaller context vs newer models
Best for
- General-purpose chat
- Voice apps
- Vision tasks
Quick verdict
- Pick Claude 4 Sonnet if you want it smarter and longer context.
- Pick GPT-4o if you want it faster and cheaper.
Auto-generated from the spec sheet. Always validate on your own evals.
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