Compare · ModelsLive · 2 picked · head to head
Claude 2 vs GPT-5 Nano
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-5 Nano wins on 4/4 benchmarks
GPT-5 Nano wins 4 of 4 shared benchmarks. Leads in general · knowledge · math.
Category leads
general·GPT-5 Nanoknowledge·GPT-5 Nanomath·GPT-5 Nano
Hype vs Reality
Attention vs performance
Claude 2
#229 by perf·no signal
GPT-5 Nano
#193 by perf·#4 by attention
Vendor risk
Who is behind the model
Anthropic
$965.0B·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
4 benchmarks · 2 models
Claude 2GPT-5 Nano
Dtbench
GPT-5 Nano leads by +18.0
Claude 2
19.8
GPT-5 Nano
37.8
GPQA diamond
GPT-5 Nano leads by +46.4
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
Claude 2
12.9
GPT-5 Nano
59.3
MATH level 5
GPT-5 Nano leads by +83.5
MATH Level 5 · the hardest tier of the MATH benchmark, featuring competition-level problems from AMC, AIME, and Olympiad-style mathematics.
Claude 2
11.7
GPT-5 Nano
95.2
OTIS Mock AIME 2024-2025
GPT-5 Nano leads by +78.7
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
Claude 2
2.4
GPT-5 Nano
81.1
Full benchmark table
| Benchmark | Claude 2 | GPT-5 Nano |
|---|---|---|
Dtbench | 19.8 | 37.8 |
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 12.9 | 59.3 |
MATH level 5 MATH Level 5 · the hardest tier of the MATH benchmark, featuring competition-level problems from AMC, AIME, and Olympiad-style mathematics. | 11.7 | 95.2 |
OTIS Mock AIME 2024-2025 OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills. | 2.4 | 81.1 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| — | — | — | — | |
| $0.05 | $0.40 | 400K tokens (~200 books) | $1.38 |
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