Compare / head-to-head
Claude Opus 4vsGPT-5
GPT-5 leads 4 of 4 shared benchmarks. GPT-5 is 8x cheaper per token. GPT-5 has the larger context window (400K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 4
GPT-5 leads
Cheaper per token
GPT-5
8x cheaper, input + output
Larger context
GPT-5
400K tokens
Provider uptime (30d)
100% · 95.0617%
Anthropic · OpenAI
Claude Opus 4
Anthropic · released 2025-05-22
textvision
Quality
Benchmark matrix
4 shared · 2 only Claude Opus 4 · 4 only GPT-5| Benchmark | Claude Opus 4 | GPT-5 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 4 | ||||
| SWE-bench Verified | 72.5% ↗ | 74.9% ↗ | -2.4 pt | GPT-5 |
| GPQA Diamond | 76.3% ↗epoch | 86.2% ↗epoch | -9.9 pt | GPT-5 |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 64.4% ↗epoch | 91.4% ↗epoch | -27 pt | GPT-5 |
| SWE-bench Verified (Epoch AI run) | 70.7% ↗epoch | 73.6% ↗epoch | -2.9 pt | GPT-5 |
| Only Claude Opus 4 reports · 2 | ||||
| AIME 2024 (no extended thinking) | 33.9% ↗ | not reported | — | — |
| Terminal-bench | 43.2% ↗ | not reported | — | — |
| Only GPT-5 reports · 4 | ||||
| AIME 2025 | not reported | 94.6% ↗ | — | — |
| FrontierMath Tier 4 v2 (Epoch AI run) | not reported | 22% ↗epoch | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | not reported | 55.4% ↗epoch | — | — |
| SimpleQA Verified | not reported | 50.1% ↗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 Opus 4 minus GPT-5 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 Opus 4 | GPT-5 | Edge |
|---|---|---|---|
| Context window | 200K tokens | 400K tokens | GPT-5 |
| Max output | 32K tokens | 128K tokens | GPT-5 |
| Input price / 1M | $15 ↗ | $1.25 ↗ | GPT-5 |
| Output price / 1M | $75 ↗ | $10 ↗ | GPT-5 |
| Cached input / 1M | $1.5 ↗ | $0.125 ↗ | GPT-5 |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $90 | $11.25 | GPT-5 |
| Modalities | text · vision | text · vision | Tie |
| Released | 2025-05-22 | 2025-08-07 | — |
| Cited benchmark scores | 6 | 9 | — |
Reliability
Provider status
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Which one wins on your data?
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