Compare · ModelsLive · 2 picked · head to head
Claude Opus 4.5 vs GPT-3.5 Turbo (older v0613)
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Claude Opus 4.5 wins on 9/9 benchmarks
Claude Opus 4.5 wins 9 of 9 shared benchmarks. Leads in arena · knowledge · general.
Category leads
arena·Claude Opus 4.5knowledge·Claude Opus 4.5general·Claude Opus 4.5math·Claude Opus 4.5coding·Claude Opus 4.5
Hype vs Reality
Attention vs performance
Claude Opus 4.5
#185 by perf·#8 by attention
GPT-3.5 Turbo (older v0613)
#243 by perf·no signal
Best value
GPT-3.5 Turbo (older v0613)
7.9x better value than Claude Opus 4.5
Claude Opus 4.5
2.8 pts/$
$15.00/M
GPT-3.5 Turbo (older v0613)
21.9 pts/$
$1.50/M
Vendor risk
Who is behind the model
Anthropic
$965.0B·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
9 benchmarks · 2 models
Claude Opus 4.5GPT-3.5 Turbo (older v0613)
Chatbot Arena Elo · Overall
Claude Opus 4.5 leads by +1445.0
Claude Opus 4.5
1469.8
GPT-3.5 Turbo (older v0613)
24.8
Chess Puzzles
Claude Opus 4.5 leads by +9.5
Chess Puzzles · tests strategic and tactical reasoning by having models solve chess puzzle positions, evaluating lookahead and pattern recognition abilities.
Claude Opus 4.5
9.5
GPT-3.5 Turbo (older v0613)
0.0
Dtbench
Claude Opus 4.5 leads by +68.9
Claude Opus 4.5
83.1
GPT-3.5 Turbo (older v0613)
14.2
FrontierMath-Tiers-1-3-v2-Private
Claude Opus 4.5 leads by +34.4
Claude Opus 4.5
34.4
GPT-3.5 Turbo (older v0613)
0.0
GPQA diamond
Claude Opus 4.5 leads by +78.5
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
Claude Opus 4.5
81.4
GPT-3.5 Turbo (older v0613)
2.9
Lmca
Claude Opus 4.5 leads by +41.0
Claude Opus 4.5
52.3
GPT-3.5 Turbo (older v0613)
11.3
Mystery Game Puzzles
Claude Opus 4.5 leads by +14.1
Claude Opus 4.5
14.1
GPT-3.5 Turbo (older v0613)
0.0
OTIS Mock AIME 2024-2025
Claude Opus 4.5 leads by +84.0
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
Claude Opus 4.5
86.1
GPT-3.5 Turbo (older v0613)
2.1
WeirdML
Claude Opus 4.5 leads by +60.3
WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns.
Claude Opus 4.5
63.7
GPT-3.5 Turbo (older v0613)
3.5
Full benchmark table
| Benchmark | Claude Opus 4.5 | GPT-3.5 Turbo (older v0613) |
|---|---|---|
Chatbot Arena Elo · Overall | 1469.8 | 24.8 |
Chess Puzzles Chess Puzzles · tests strategic and tactical reasoning by having models solve chess puzzle positions, evaluating lookahead and pattern recognition abilities. | 9.5 | 0.0 |
Dtbench | 83.1 | 14.2 |
FrontierMath-Tiers-1-3-v2-Private | 34.4 | 0.0 |
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 81.4 | 2.9 |
Lmca | 52.3 | 11.3 |
Mystery Game Puzzles | 14.1 | 0.0 |
OTIS Mock AIME 2024-2025 OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills. | 86.1 | 2.1 |
WeirdML WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns. | 63.7 | 3.5 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $5.00 | $25.00 | 200K tokens (~100 books) | $100.00 | |
| $1.00 | $2.00 | 4K tokens (~2 books) | $12.50 |
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