Compare / head-to-head
Claude 3.5 SonnetvsGPT-4o
Claude 3.5 Sonnet leads 2 of 3 shared benchmarks. GPT-4o is 1.4x cheaper per token. Claude 3.5 Sonnet has the larger context window (200K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
2 – 1
Claude 3.5 Sonnet leads
Cheaper per token
GPT-4o
1.4x cheaper, input + output
Larger context
Claude 3.5 Sonnet
200K tokens
Provider uptime (30d)
100% · 94.2446%
Anthropic · OpenAI
Claude 3.5 Sonnet
Anthropic · released 2024-10-22
textvision
Quality
Benchmark matrix
3 shared · 1 only Claude 3.5 Sonnet · 5 only GPT-4o| Benchmark | Claude 3.5 Sonnet | GPT-4o | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 3 | ||||
| GPQA Diamond | 55.3% ↗epoch | 46% ↗ | +9.3 pt | Claude 3.5 Sonnet |
| AIME 2025 | 3.3% ↗matharena | 11.7% ↗matharena | -8.4 pt | GPT-4o |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 8.5% ↗epoch | 6.4% ↗epoch | +2.1 pt | Claude 3.5 Sonnet |
| Only Claude 3.5 Sonnet reports · 1 | ||||
| SWE-bench Verified | 49% ↗ | not reported | — | — |
| Only GPT-4o reports · 5 | ||||
| MMLU | not reported | 85.7% ↗ | — | — |
| AIME 2024 | not reported | 13.1% ↗ | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | not reported | 0.4% ↗epoch | — | — |
| SimpleQA Verified | not reported | 26% ↗epoch | — | — |
| SWE-bench Verified (Epoch AI run) | not reported | 31% ↗epoch | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Claude 3.5 Sonnet minus GPT-4o in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | Claude 3.5 Sonnet | GPT-4o | Edge |
|---|---|---|---|
| Context window | 200K tokens | 128K tokens | Claude 3.5 Sonnet |
| Max output | 8K tokens | 16K tokens | GPT-4o |
| Input price / 1M | $3 ↗ | $2.5 ↗ | GPT-4o |
| Output price / 1M | $15 ↗ | $10 ↗ | GPT-4o |
| Cached input / 1M | $0.3 ↗ | $1.25 ↗ | Claude 3.5 Sonnet |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $18 | $12.5 | GPT-4o |
| Modalities | text · vision | text · vision | Tie |
| Released | 2024-10-22 | 2024-05-13 | — |
| Cited benchmark scores | 4 | 9 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Claude 3.5 Sonnet vs …
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GPT-4o vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
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