Key Takeaways
Jamba Large 1.7 wins:
- Cheaper output tokens
GPT-5 Codex wins:
- Cheaper input tokens
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
- Supports vision
- Has reasoning mode
Price Advantage
Jamba Large 1.7
Benchmark Advantage
GPT-5 Codex
Context Window
GPT-5 Codex
Speed
GPT-5 Codex
Pricing Comparison
Price Comparison
| Metric | Jamba Large 1.7 | GPT-5 Codex | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $2.00 | $1.25 | GPT-5 Codex |
| Output (per 1M tokens) | $8.00 | $10.00 | Jamba Large 1.7 |
| Cache Read (per 1M) | N/A | $0.13 | GPT-5 Codex |
Using a 3:1 input/output ratio, GPT-5 Codex is 2% cheaper overall.
Jamba Large 1.7 Providers
No provider data available
GPT-5 Codex Providers
No provider data available
Benchmark Comparison
7
Benchmarks Compared
0
Jamba Large 1.7 Wins
6
GPT-5 Codex Wins
Benchmark Scores
| Benchmark | Jamba Large 1.7 | GPT-5 Codex | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 10.9 | 44.6 | |
Coding Index Code generation & understanding | 7.8 | 38.9 | |
Math Index Mathematical reasoning | 2.3 | 98.7 | |
MMLU Pro Academic knowledge | 57.7 | 86.5 | |
GPQA Graduate-level science | 39.0 | 83.7 | |
LiveCodeBench Competitive programming | 18.1 | 84.0 | |
AIME Competition math | 5.7 | - | - |
GPT-5 Codex significantly outperforms in coding benchmarks.
Cost vs Quality
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Jamba Large 1.7
Other models
Context & Performance
Context Window
Jamba Large 1.7
256,000
tokens
GPT-5 Codex
400,000
tokens
GPT-5 Codex has a 36% larger context window.
Speed Performance
| Metric | Jamba Large 1.7 | GPT-5 Codex | Winner |
|---|---|---|---|
| Tokens/second | 57.4 tok/s | 176.5 tok/s | |
| Time to First Token | 0.83s | 14.49s |
GPT-5 Codex responds 208% faster on average.
Capabilities
Feature Comparison
| Feature | Jamba Large 1.7 | GPT-5 Codex |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Jamba Large 1.7 | GPT-5 Codex |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | Ai21 | OpenAI |
| Released | Aug 2025 | Sep 2025 |
Jamba Large 1.7 Modalities
Input
text
Output
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GPT-5 Codex Modalities
Input
textimage
Output
text