Key Takeaways
Nova Premier 1.0 wins:
- Larger context window
GPT-5 Codex wins:
- Cheaper input tokens
- Cheaper output tokens
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
Price Advantage
GPT-5 Codex
Benchmark Advantage
GPT-5 Codex
Context Window
Nova Premier 1.0
Speed
GPT-5 Codex
Pricing Comparison
Price Comparison
| Metric | Nova Premier 1.0 | GPT-5 Codex | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $2.50 | $1.25 | GPT-5 Codex |
| Output (per 1M tokens) | $12.50 | $10.00 | GPT-5 Codex |
| Cache Read (per 1M) | $625000.00 | $125000.00 | GPT-5 Codex |
Using a 3:1 input/output ratio, GPT-5 Codex is 31% cheaper overall.
Nova Premier 1.0 Providers
Amazon Bedrock $2.50 (Cheapest)
GPT-5 Codex Providers
OpenAI $1.25 (Cheapest)
Benchmark Comparison
7
Benchmarks Compared
0
Nova Premier 1.0 Wins
6
GPT-5 Codex Wins
Benchmark Scores
| Benchmark | Nova Premier 1.0 | GPT-5 Codex | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 18.9 | 44.5 | |
Coding Index Code generation & understanding | 13.8 | 38.9 | |
Math Index Mathematical reasoning | 17.3 | 98.7 | |
MMLU Pro Academic knowledge | 73.3 | 86.5 | |
GPQA Graduate-level science | 56.9 | 83.7 | |
LiveCodeBench Competitive programming | 31.7 | 84.0 | |
AIME Competition math | 17.0 | - | - |
GPT-5 Codex significantly outperforms in coding benchmarks.
Cost vs Quality
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Nova Premier 1.0
Other models
Context & Performance
Context Window
Nova Premier 1.0
1,000,000
tokens
Max output: 32,000 tokens
GPT-5 Codex
400,000
tokens
Max output: 128,000 tokens
Nova Premier 1.0 has a 60% larger context window.
Speed Performance
| Metric | Nova Premier 1.0 | GPT-5 Codex | Winner |
|---|---|---|---|
| Tokens/second | 77.6 tok/s | 310.8 tok/s | |
| Time to First Token | 0.80s | 11.40s |
GPT-5 Codex responds 301% faster on average.
Capabilities
Feature Comparison
| Feature | Nova Premier 1.0 | GPT-5 Codex |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Nova Premier 1.0 | GPT-5 Codex |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | Amazon | OpenAI |
| Released | Oct 2025 | Sep 2025 |
Nova Premier 1.0 Modalities
Input
textimage
Output
text
GPT-5 Codex Modalities
Input
textimage
Output
text