Key Takeaways
Llama 2 70B Chat wins:
- Cheaper output tokens
GPT-5.2-Codex wins:
- Cheaper input tokens
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Supports vision
Price Advantage
Llama 2 70B Chat
Benchmark Advantage
GPT-5.2-Codex
Context Window
GPT-5.2-Codex
Speed
GPT-5.2-Codex
Pricing Comparison
Price Comparison
| Metric | Llama 2 70B Chat | GPT-5.2-Codex | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $1.95 | $1.75 | GPT-5.2-Codex |
| Output (per 1M tokens) | $2.56 | $14.00 | Llama 2 70B Chat |
| Cache Read (per 1M) | N/A | $0.17 | GPT-5.2-Codex |
Using a 3:1 input/output ratio, Llama 2 70B Chat is 56% cheaper overall.
Llama 2 70B Chat Providers
No provider data available
GPT-5.2-Codex Providers
No provider data available
Benchmark Comparison
3
Benchmarks Compared
0
Llama 2 70B Chat Wins
0
GPT-5.2-Codex Wins
Benchmark Scores
| Benchmark | Llama 2 70B Chat | GPT-5.2-Codex | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | - | 49.0 | - |
Coding Index Code generation & understanding | - | 43.0 | - |
GPQA Graduate-level science | - | 89.9 | - |
GPT-5.2-Codex significantly outperforms in coding benchmarks.
Cost vs Quality
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Other models
Context & Performance
Context Window
Llama 2 70B Chat
N/A
tokens
GPT-5.2-Codex
400,000
tokens
Speed Performance
| Metric | Llama 2 70B Chat | GPT-5.2-Codex | Winner |
|---|---|---|---|
| Tokens/second | N/A | 72.4 tok/s | |
| Time to First Token | N/A | 7.11s |
Capabilities
Feature Comparison
| Feature | Llama 2 70B Chat | GPT-5.2-Codex |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Llama 2 70B Chat | GPT-5.2-Codex |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | Meta-llama | OpenAI |
| Released | Unknown | Jan 2026 |
Llama 2 70B Chat Modalities
Input
Output
GPT-5.2-Codex Modalities
Input
textimage
Output
text