Key Takeaways
Hermes 4 405B wins:
- Cheaper input tokens
- Cheaper output tokens
GPT-5 wins:
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
- Supports vision
Price Advantage
Hermes 4 405B
Benchmark Advantage
GPT-5
Context Window
GPT-5
Speed
GPT-5
Pricing Comparison
Price Comparison
| Metric | Hermes 4 405B | GPT-5 | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $1.00 | $1.25 | Hermes 4 405B |
| Output (per 1M tokens) | $3.00 | $10.00 | Hermes 4 405B |
| Cache Read (per 1M) | N/A | $125000.00 | GPT-5 |
Using a 3:1 input/output ratio, Hermes 4 405B is 56% cheaper overall.
Hermes 4 405B Providers
Nebius $1.00 (Cheapest)
GPT-5 Providers
OpenAI $1.25 (Cheapest)
Azure $1.25 (Cheapest)
Benchmark Comparison
8
Benchmarks Compared
0
Hermes 4 405B Wins
6
GPT-5 Wins
Benchmark Scores
| Benchmark | Hermes 4 405B | GPT-5 | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 17.1 | 44.6 | |
Coding Index Code generation & understanding | 18.1 | 36.0 | |
Math Index Mathematical reasoning | 15.3 | 94.3 | |
MMLU Pro Academic knowledge | 72.9 | 87.1 | |
GPQA Graduate-level science | 53.6 | 85.4 | |
LiveCodeBench Competitive programming | 54.6 | 84.6 | |
Aider Real-world code editing | - | 88.0 | - |
AIME Competition math | - | 95.7 | - |
GPT-5 significantly outperforms in coding benchmarks.
Cost vs Quality
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Hermes 4 405B
Other models
Context & Performance
Context Window
Hermes 4 405B
131,072
tokens
GPT-5
400,000
tokens
Max output: 128,000 tokens
GPT-5 has a 67% larger context window.
Speed Performance
| Metric | Hermes 4 405B | GPT-5 | Winner |
|---|---|---|---|
| Tokens/second | 33.1 tok/s | 129.3 tok/s | |
| Time to First Token | 0.68s | 97.57s |
GPT-5 responds 290% faster on average.
Capabilities
Feature Comparison
| Feature | Hermes 4 405B | GPT-5 |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Hermes 4 405B | GPT-5 |
|---|---|---|
| License | Open Source | Proprietary |
| Author | Nousresearch | OpenAI |
| Released | Aug 2025 | Aug 2025 |
Hermes 4 405B Modalities
Input
text
Output
text
GPT-5 Modalities
Input
textimagefile
Output
text