Key Takeaways
Weaver (alpha) wins:
- Cheaper input tokens
- Cheaper output tokens
GPT-5.2 Pro wins:
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
- Supports vision
- Supports tool calls
Price Advantage
Weaver (alpha)
Benchmark Advantage
GPT-5.2 Pro
Context Window
GPT-5.2 Pro
Speed
GPT-5.2 Pro
Pricing Comparison
Price Comparison
| Metric | Weaver (alpha) | GPT-5.2 Pro | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $0.75 | $21.00 | Weaver (alpha) |
| Output (per 1M tokens) | $1.00 | $168.00 | Weaver (alpha) |
Using a 3:1 input/output ratio, Weaver (alpha) is 99% cheaper overall.
Weaver (alpha) Providers
Mancer 2 $0.75 (Cheapest)
GPT-5.2 Pro Providers
OpenAI $21.00 (Cheapest)
Benchmark Comparison
6
Benchmarks Compared
0
Weaver (alpha) Wins
0
GPT-5.2 Pro Wins
Benchmark Scores
| Benchmark | Weaver (alpha) | GPT-5.2 Pro | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | - | 51.2 | - |
Coding Index Code generation & understanding | - | 48.7 | - |
Math Index Mathematical reasoning | - | 99.0 | - |
MMLU Pro Academic knowledge | - | 87.4 | - |
GPQA Graduate-level science | - | 90.3 | - |
LiveCodeBench Competitive programming | - | 88.9 | - |
GPT-5.2 Pro significantly outperforms in coding benchmarks.
Cost vs Quality
X-axis:
Y-axis:
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Other models
Context & Performance
Context Window
Weaver (alpha)
8,000
tokens
Max output: 2,000 tokens
GPT-5.2 Pro
400,000
tokens
Max output: 128,000 tokens
GPT-5.2 Pro has a 98% larger context window.
Speed Performance
| Metric | Weaver (alpha) | GPT-5.2 Pro | Winner |
|---|---|---|---|
| Tokens/second | N/A | 98.3 tok/s | |
| Time to First Token | N/A | 46.57s |
Capabilities
Feature Comparison
| Feature | Weaver (alpha) | GPT-5.2 Pro |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Weaver (alpha) | GPT-5.2 Pro |
|---|---|---|
| License | Open Source | Proprietary |
| Author | Mancer | OpenAI |
| Released | Aug 2023 | Dec 2025 |
Weaver (alpha) Modalities
Input
text
Output
text
GPT-5.2 Pro Modalities
Input
imagetextfile
Output
text