Data points: 73
Model compare
Claude Opus 4.8 vs GPT-4
The readout for Claude Opus 4.8 and GPT-4, before the detailed comparison sheet.
Key Takeaways
Weighted outcome: Claude Opus 4.8. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Claude Opus 4.8
Claude Opus 4.8 has the higher weighted result; Model A / B score 96 to 4.
Evidence depth
73 data points
Includes 4 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Start with Claude Opus 4.8
The charts below split 14 high-signal samples across speed, scores, and audit health.
Change comparison
Switch either side of this report to compare another model with the same LMSpeed data pipeline.
Select a different model to open a new comparison URL.
Comparison sheet
This report only uses LMSpeed data for Claude Opus 4.8 and GPT-4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Opus 4.8 | GPT-4 |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 96.0 pts | 4.0 pts |
| Benchmark category leads | 3 categories | 0 categories |
| Operational advantages | Cheapest input price, Average speed, Free providers, Provider coverage | First-token latency |
| Context window | 1M tokens | 8.2K tokens |
| Max output | 128K tokens | 4.1K tokens |
| Modalities | Input TextImageFile Output Text | Input Text Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputText outputTool callingStructured outputsJSON mode |
The overall result weights benchmark capability categories at 80% and price, API speed/latency, and availability at 20%. Recent test volume does not affect the winner, and missing benchmark categories are excluded.
Model metadata
Model metadata
| Model compare | Claude Opus 4.8 | GPT-4 |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | May 2026 | May 2023 |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | No data | 2021-09-30 |
| OpenRouter ID | anthropic/claude-opus-4.8 | openai/gpt-4 |
| References | No data | No data |
When to choose each model
This report only uses LMSpeed data for Claude Opus 4.8 and GPT-4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude Opus 4.8
Claude Opus 4.8 is stronger in benchmark categories (Coding, Reasoning, Math) and operational dimensions (Cheapest input price, Average speed, Free providers, Provider coverage).
GPT-4
GPT-4 has these operational advantages: First-token latency.
Benchmark score comparison
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Category performance
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
- Model A coverage
- 8 / 8
- Model B coverage
- 3 / 8
- Shared
- 3 shared categories
Avg. score
Claude Opus 4.8
58.8
Avg. score
GPT-4
42.4
Agents
Claude Opus 4.8
Coding
Claude Opus 4.8 leads by 15.7
Reasoning
Claude Opus 4.8 leads by 19.5
Knowledge
Claude Opus 4.8
Math
Claude Opus 4.8 leads by 17.3
Multilingual
Claude Opus 4.8
Multimodal
Claude Opus 4.8
Instruction following
Claude Opus 4.8
Professional benchmark details
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Professional benchmark details
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude Opus 4.8
winner$5.00/M
Rank #164/180 · confidence 4
GPT-4
$30.00/M
Rank #178/180 · confidence 4
Claude Opus 4.8
winner$10.00/M
Rank #165/180 · confidence 4
GPT-4
$37.50/M
Rank #178/180 · confidence 4
Claude Opus 4.8
winner$25.00/M
Rank #165/180 · confidence 4
GPT-4
$60.00/M
Rank #173/180 · confidence 4
Claude Opus 4.8
winner92.0%
Rank #17/212 · confidence 4
GPT-4
34.9%
Rank #205/212 · confidence 4
API audit comparison
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
API audit comparison
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Opus 4.8 | GPT-4 |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Provider examples
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
Provider examples
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Opus 4.8 | GPT-4 |
|---|---|---|
BUZZ5 tests | Claude Opus 4.8 speed / latency 50 tok/s / 4823ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
42公益站0 tests | Claude Opus 4.8 speed / latency N/A / N/A input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
AIGCBAR0 tests | Claude Opus 4.8 speed / latency N/A / N/A input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
AIO通用智能服务平台0 tests | Claude Opus 4.8 speed / latency N/A / N/A input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
AI发财网0 tests | Claude Opus 4.8 speed / latency N/A / N/A input / output No data | GPT-4 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/request | GPT-4 gpt-4 speed / latency No data input / output $0/request | |
Claude Opus 4.8 claude-opus-4-8-c speed / latency No data input / output $0.0082/request | GPT-4 gpt-4-0125-preview speed / latency No data input / output $2.05/M/$4.11/M | |
Claude Opus 4.8 claude-opus-4-8-thinking speed / latency No data input / output $0.548/M/$2.74/M | GPT-4 gpt-4-all speed / latency No data input / output $0.011/request | |
Claude Opus 4.8 claude-opus-4-8 speed / latency No data input / output $0.548/M/$2.74/M | GPT-4 gpt-4-all speed / latency No data input / output $0.011/request | |
Claude Opus 4.8 claude-opus-4-8 speed / latency No data input / output $0.017/request | GPT-4 gpt-4-all speed / latency No data input / output $0.014/request |
FAQ
Weighted outcome: Claude Opus 4.8. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
- Why is this comparison indexable?
- It has 6 verifiable comparison points, and both models have pricing or benchmark data.
- Are missing metrics invented?
- No. Metrics without LMSpeed data are omitted from this report.