Data points: 81
The readout for Claude Opus 4.5 and GPT-5, before the detailed comparison sheet.
Decision read
GPT-5
GPT-5 currently has the stronger profile, with verified wins split 2 to 4.
Evidence depth
81 data points
Includes 8 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with GPT-5
The charts below split 17 high-signal samples across speed, scores, and audit health.
Model compare Claude Opus 4.5 vs GPT-5claude-opus-4-5-vs-gpt-5 | Model A Claude Opus 4.5 | Model B GPT-5 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 2 wins | 4 wins |
| Where it leads | First-token latency, Free providers | Cheapest input price, Average speed, Provider coverage, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Claude Opus 4.5 | GPT-5 |
|---|---|---|
| MMLU-Pro | 88.9%#3 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Opus 4.5 | GPT-5 |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Opus 4.5 | GPT-5 |
|---|---|---|
20 tests | Claude Opus 4.5 speed / latency 56 tok/s / 2598ms input / output No data |
This report only uses LMSpeed data for Claude Opus 4.5 and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Claude Opus 4.5 | GPT-5 |
|---|---|---|
| When to choose each model | Claude Opus 4.5 Claude Opus 4.5 is stronger when you prioritize First-token latency, Free providers. | GPT-5 GPT-5 is stronger when you prioritize Cheapest input price, Average speed, Provider coverage, Recent tests. |
TL;DR: GPT-5 leads across 81 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Claude Opus 4.5 vs GPT-5 into nearby model comparisons with enough verified LMSpeed data.
| Model metadata | Claude Opus 4.5 exposes 200K tokens; notable signals: Text input, Image input, File input, Text output. | GPT-5 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output. |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Context window | 200K tokens | 128K tokens |
| Max output | 64K tokens | 16.4K tokens |
| Released | Nov 2025 | Aug 2025 |
| Modalities | Input FileImageText Output Text | Input FileImageText Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | No data | 2024-09-30 |
| OpenRouter ID | anthropic/claude-opus-4.5 | openai/gpt-5-chat |
| References | No data | No data |
| LiveCodeBench | 73.8%#26 | 84.6%#11 |
|---|
| SciCode | 47.0%#15 | 42.9%#31 |
|---|
| HLE | 12.9%#59 | 26.5%#24 |
|---|
| Input price | $5.00/M#41 | $1.25/M#30 |
|---|
| GPQA | 81.0%#53 | 85.4%#31 |
|---|
| Time to first answer token | 1.45 s#33 | 85.97 s#102 |
|---|
| Output price | $25.00/M#47 | $10.00/M#41 |
|---|
GPT-5
speed / latency
102 tok/s / 948ms
input / output
No data
V-API20 tests | Claude Opus 4.5 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 95 tok/s / 1234ms input / output No data |
|---|
EasyMore5 tests | Claude Opus 4.5 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 46 tok/s / 6577ms input / output No data |
|---|
GLM BigModel Relay5 tests | Claude Opus 4.5 speed / latency 52 tok/s / 5332ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
|---|
HotaruAPI5 tests | Claude Opus 4.5 speed / latency 59 tok/s / 2785ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
|---|
Claude Opus 4.5 claude-opus-4.5 speed / latency No data input / output $0/M / $0/M | GPT-5 gpt-5 speed / latency No data input / output $1.07/M / $8.56/M |
Claude Opus 4.5 c/claude-opus-4-5-20251101 speed / latency No data input / output $0.0017/M / $0.0017/M | GPT-5 gpt-5 speed / latency No data input / output $1.25/M / $10.00/M |
Claude Opus 4.5 claude-opus-4-5-20251101 speed / latency No data input / output $0.068/M / $0.342/M | GPT-5 gpt-5-2025-08-07 speed / latency No data input / output $0.034/M / $0.274/M |
Claude Opus 4.5 claude-opus-4-5-20251101 speed / latency No data input / output $0.205/M / $1.03/M | GPT-5 gpt-5-chat-latest speed / latency No data input / output $0.051/M / $0.411/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
