Key Takeaways
Claude Opus 4.5 wins:
- Cheaper input tokens
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
- Has reasoning mode
GPT-5 Image wins:
- Cheaper output tokens
- Larger context window
Price Advantage
Claude Opus 4.5
Benchmark Advantage
Claude Opus 4.5
Context Window
GPT-5 Image
Speed
Claude Opus 4.5
Pricing Comparison
Price Comparison
| Metric | Claude Opus 4.5 | GPT-5 Image | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $5.00 | $10.00 | Claude Opus 4.5 |
| Output (per 1M tokens) | $25.00 | $10.00 | GPT-5 Image |
| Cache Read (per 1M) | $500000.00 | $1250000.00 | Claude Opus 4.5 |
| Cache Write (per 1M) | $6250000.00 | N/A | Claude Opus 4.5 |
Both models have similar overall pricing.
Claude Opus 4.5 Providers
Amazon Bedrock $5.00 (Cheapest)
Google $5.00 (Cheapest)
Anthropic $5.00 (Cheapest)
GPT-5 Image Providers
OpenAI $10.00 (Cheapest)
Benchmark Comparison
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Benchmarks Compared
0
Claude Opus 4.5 Wins
0
GPT-5 Image Wins
Benchmark Scores
| Benchmark | Claude Opus 4.5 | GPT-5 Image | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 43.0 | - | - |
Coding Index Code generation & understanding | 42.9 | - | - |
Math Index Mathematical reasoning | 62.7 | - | - |
MMLU Pro Academic knowledge | 88.9 | - | - |
GPQA Graduate-level science | 81.0 | - | - |
LiveCodeBench Competitive programming | 73.8 | - | - |
Claude Opus 4.5 significantly outperforms in coding benchmarks.
Cost vs Quality
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Claude Opus 4.5
Other models
Context & Performance
Context Window
Claude Opus 4.5
200,000
tokens
Max output: 64,000 tokens
GPT-5 Image
400,000
tokens
Max output: 128,000 tokens
GPT-5 Image has a 50% larger context window.
Speed Performance
| Metric | Claude Opus 4.5 | GPT-5 Image | Winner |
|---|---|---|---|
| Tokens/second | 78.8 tok/s | N/A | |
| Time to First Token | 1.72s | N/A |
Capabilities
Feature Comparison
| Feature | Claude Opus 4.5 | GPT-5 Image |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Claude Opus 4.5 | GPT-5 Image |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | Anthropic | OpenAI |
| Released | Nov 2025 | Oct 2025 |
Claude Opus 4.5 Modalities
Input
fileimagetext
Output
text
GPT-5 Image Modalities
Input
imagetextfile
Output
imagetext