Data points: 91
The readout for Claude Opus 4.8 and GPT-5, before the detailed comparison sheet.
Decision read
GPT-5
GPT-5 currently has the stronger profile, with verified wins split 1 to 4.
Evidence depth
91 data points
Includes 8 benchmark rows, 2 audit samples, and 10 provider examples.
Selection signal
Start with GPT-5
The charts below split 20 high-signal samples across speed, scores, and audit health.
Model compare Claude Opus 4.8 vs GPT-5claude-opus-4-8-vs-gpt-5 | Model A Claude Opus 4.8 | Model B GPT-5 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 1 wins | 4 wins |
| Where it leads | First-token latency | Cheapest input price, Average speed, Provider coverage, Recent tests |
| Model metadata | Claude Opus 4.8 exposes 1M 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 | 1M tokens | 128K tokens |
| Max output | 128K tokens | 16.4K tokens |
| Released | May 2026 | Aug 2025 |
| Modalities | Input TextImageFile 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-4.8-fast | openai/gpt-5-chat |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Claude Opus 4.8 | GPT-5 |
|---|---|---|
| HLE | 45.7%#2 | 26.5%#24 |
| GPQA | 92.0%#3 | 85.4%#31 |
| SciCode | 53.5%#7 | 42.9%#31 |
| Input price | $5.00/M#41 | $1.25/M#30 |
| Output price | $25.00/M#47 | $10.00/M#41 |
| Output speed | 60.1 tok/s#83 | 117.2 tok/s#45 |
| Blended price | $10.00/M#68 | $3.44/M#58 |
| Time to first answer token | 21.67 s#74 | 85.97 s#102 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Opus 4.8 | GPT-5 |
|---|---|---|
速创APIWinner: Claude Opus 4.8 | Claude Opus 4.8 claude-opus-4-8 Audit score 100 100100100100 | GPT-5 gpt-5-all No audit yet |
钠 APIWinner: Claude Opus 4.8 | Claude Opus 4.8 claude-opus-4-8 Audit score 76 72727088 | GPT-5 gpt-5 No audit yet |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Opus 4.8 | GPT-5 |
|---|---|---|
V-API20 tests | Claude Opus 4.8 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 95 tok/s / 1234ms input / output No data |
6345ywz API0 tests | Claude Opus 4.8 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
91VIP API0 tests | Claude Opus 4.8 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
AAAI0 tests | Claude Opus 4.8 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
Aiberm0 tests | Claude Opus 4.8 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
Claude Opus 4.8 claude-opus-4-8 speed / latency No data input / output $0.040/M / $0.200/M | GPT-5 gpt-5 speed / latency No data input / output $0.020/M / $0.160/M | |
Claude Opus 4.8 claude-opus-4-8 speed / latency No data input / output $0.103/M / $0.514/M | GPT-5 gpt-5 speed / latency No data input / output $0.036/M / $0.285/M | |
Claude Opus 4.8 claude-opus-4-8 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 | |
Claude Opus 4.8 claude-opus-4-8 speed / latency No data input / output $0.342/M / $1.71/M | GPT-5 gpt-5 speed / latency No data input / output $0.086/M / $0.685/M | |
Claude Opus 4.8 claude-opus-4-8 speed / latency No data input / output $9.25/M / $46.23/M | GPT-5 gpt-5-chat-latest speed / latency No data input / output $0.154/M / $1.23/M |
This report only uses LMSpeed data for Claude Opus 4.8 and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Claude Opus 4.8 | GPT-5 |
|---|---|---|
| When to choose each model | Claude Opus 4.8 Claude Opus 4.8 is stronger when you prioritize First-token latency. | GPT-5 GPT-5 is stronger when you prioritize Cheapest input price, Average speed, Provider coverage, Recent tests. |
TL;DR: GPT-5 leads across 91 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Claude Opus 4.8 vs GPT-5 into nearby model comparisons with enough verified LMSpeed data.
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
