Key Takeaways
Claude Opus 4.1 wins:
- Has reasoning mode
GPT-5 wins:
- Cheaper input tokens
- Cheaper output tokens
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
Price Advantage
GPT-5
Benchmark Advantage
GPT-5
Context Window
GPT-5
Speed
GPT-5
Pricing Comparison
Price Comparison
| Metric | Claude Opus 4.1 | GPT-5 | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $15.00 | $1.25 | GPT-5 |
| Output (per 1M tokens) | $75.00 | $10.00 | GPT-5 |
| Cache Read (per 1M) | $1.50 | $0.13 | GPT-5 |
| Cache Write (per 1M) | $18.75 | N/A | Claude Opus 4.1 |
Using a 3:1 input/output ratio, GPT-5 is 89% cheaper overall.
Claude Opus 4.1 Providers
Amazon Bedrock $15.00 (Cheapest)
Google $15.00 (Cheapest)
Anthropic $15.00 (Cheapest)
GPT-5 Providers
OpenAI $1.25 (Cheapest)
Azure $1.25 (Cheapest)
Benchmark Comparison
8
Benchmarks Compared
0
Claude Opus 4.1 Wins
1
GPT-5 Wins
Benchmark Scores
| Benchmark | Claude Opus 4.1 | GPT-5 | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 23.6 | 44.6 | |
Coding Index Code generation & understanding | - | 36.0 | - |
Math Index Mathematical reasoning | - | 94.3 | - |
MMLU Pro Academic knowledge | - | 87.1 | - |
GPQA Graduate-level science | - | 85.4 | - |
LiveCodeBench Competitive programming | - | 84.6 | - |
Aider Real-world code editing | - | 88.0 | - |
AIME Competition math | - | 95.7 | - |
GPT-5 significantly outperforms in coding benchmarks.
Cost vs Quality
X-axis:
Y-axis:
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Other models
Context & Performance
Context Window
Claude Opus 4.1
200,000
tokens
Max output: 32,000 tokens
GPT-5
400,000
tokens
Max output: 128,000 tokens
GPT-5 has a 50% larger context window.
Speed Performance
| Metric | Claude Opus 4.1 | GPT-5 | Winner |
|---|---|---|---|
| Tokens/second | 34.7 tok/s | 66.3 tok/s | |
| Time to First Token | 1.43s | 131.42s |
GPT-5 responds 91% faster on average.
Capabilities
Feature Comparison
| Feature | Claude Opus 4.1 | GPT-5 |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Claude Opus 4.1 | GPT-5 |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | Anthropic | OpenAI |
| Released | Aug 2025 | Aug 2025 |
Claude Opus 4.1 Modalities
Input
imagetextfile
Output
text
GPT-5 Modalities
Input
textimagefile
Output
text