> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apiyi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# GPT-5.2 Released: OpenAI Strikes Back Against Gemini 3 with Three Variants

> OpenAI released GPT-5.2 series on December 11, 2025, featuring Instant, Thinking, and Pro variants with significant improvements in reasoning, coding, and long-context tasks. APIYI now supports all GPT-5.2 models via OpenAI-compatible API.

## Key Highlights

* **Three Variants**: Instant (fast writing), Thinking (structured coding), Pro (professional challenges) for different use cases
* **Reasoning Breakthrough**: GPT-5.2 Pro achieves 90% on ARC-AGI-1, first model to cross this threshold with 390× cost reduction
* **Professional Capability**: Beats or ties industry professionals 70.9% of the time on GDPval knowledge work tasks
* **Extended Context**: 400,000 tokens context window with 128,000 tokens single output support
* **Updated Knowledge**: Knowledge cutoff advanced to August 31, 2025, covering latest tech and events

## Background

On December 11, 2025, OpenAI officially launched the GPT-5.2 model series, a rapid iteration following last month's GPT-5.1 release and a strong response to competitors like Google's Gemini 3 and Anthropic's Claude Opus 4.5.

This release comes after OpenAI declared a "Code Red" emergency last month to address challenges from new models by Anthropic and Google. OpenAI CEO Sam Altman stated that with GPT-5.2's release, the company expects to exit "Code Red" status by January 2026.

The GPT-5.2 series includes three variants:

* **GPT-5.2 Instant** (`gpt-5.2-chat-latest`): Fast responses for writing and information seeking
* **GPT-5.2 Thinking** (`gpt-5.2`): Structured work for coding and planning
* **GPT-5.2 Pro** (`gpt-5.2-pro`): Highest accuracy for complex professional questions

APIYI has launched all GPT-5.2 variants immediately, supporting OpenAI-compatible API format for instant developer access.

## Detailed Analysis

### Core Features

<CardGroup cols={2}>
  <Card title="Reasoning Breakthrough" icon="brain">
    90% on ARC-AGI-1, first model to cross this threshold with 390× cost reduction
  </Card>

  <Card title="Professional Excellence" icon="graduation-cap">
    Beats or ties professionals 70.9% of the time on GDPval tasks
  </Card>

  <Card title="Extended Context" icon="book-open">
    400,000 tokens context window, 128,000 tokens single output
  </Card>

  <Card title="Updated Knowledge" icon="calendar">
    Knowledge cutoff advanced to August 31, 2025
  </Card>
</CardGroup>

### Performance Highlights

GPT-5.2 series demonstrates exceptional performance across multiple authoritative benchmarks, particularly in reasoning, science, mathematics, and coding:

| Benchmark                   | GPT-5.2 Pro | GPT-5.2 Thinking | GPT-5.1 | Gemini 3 Pro |
| --------------------------- | ----------- | ---------------- | ------- | ------------ |
| **ARC-AGI-1 (Verified)**    | **90.0%**   | -                | 87.0%   | -            |
| **ARC-AGI-2**               | **54.2%**   | -                | -       | -            |
| **GPQA Diamond**            | **93.2%**   | 92.4%            | -       | -            |
| **FrontierMath (Tier 1-3)** | -           | **40.3%**        | -       | -            |
| **SWE-Bench Pro**           | -           | **55.6%**        | 76.3%   | 76.2%        |
| **GDPval (Professional)**   | -           | **70.9%**        | -       | -            |

<Info>
  Data source: OpenAI official blog (December 11, 2025). ARC-AGI, GPQA, FrontierMath, and SWE-Bench are all industry-standard evaluation benchmarks.
</Info>

**Reasoning Capability Breakthrough**:

* **ARC-AGI-1**: GPT-5.2 Pro reaches 90%, first model to cross this threshold
* **Cost Optimization**: Compared to last year's o3-preview (87%), cost reduced by approximately 390×
* **ARC-AGI-2**: Achieves 54.2% on more challenging abstract reasoning tasks

**Science & Mathematics**:

* **GPQA Diamond**: GPT-5.2 Pro reaches 93.2% on graduate-level Google-proof Q\&A
* **FrontierMath**: GPT-5.2 Thinking solves 40.3% of expert-level mathematics problems

**Coding & Professional Work**:

* **SWE-Bench Pro**: Achieves 55.6% on real-world software engineering tasks
* **GDPval**: Beats or ties industry professionals 70.9% of the time

**Long Context Understanding**:

* **Near-perfect accuracy** within 256k tokens
* Equivalent to approximately 200,000 words or a complete novel

### Technical Specifications

| Parameter            | GPT-5.2 / Thinking            | GPT-5.2 Pro                  |
| -------------------- | ----------------------------- | ---------------------------- |
| **Context Length**   | 400,000 tokens                | 400,000 tokens               |
| **Max Output**       | 128,000 tokens                | 128,000 tokens               |
| **Knowledge Cutoff** | August 31, 2025               | August 31, 2025              |
| **Input Price**      | \$1.75 / 1M tokens            | \$21.00 / 1M tokens          |
| **Output Price**     | \$14.00 / 1M tokens           | \$168.00 / 1M tokens         |
| **Cached Input**     | \$0.175 / 1M tokens (90% off) | \$2.10 / 1M tokens (90% off) |

<Info>
  Compared to GPT-5.1 (\$1.25/\$10), GPT-5.2 pricing increased by 40%, but with significant performance improvements and updated knowledge.
</Info>

### Variant Comparison

| Variant      | Model Name            | Use Cases                               | Core Advantage           |
| ------------ | --------------------- | --------------------------------------- | ------------------------ |
| **Instant**  | `gpt-5.2-chat-latest` | Fast writing, information seeking       | Fastest response         |
| **Thinking** | `gpt-5.2`             | Coding, planning, structured tasks      | Strong logical reasoning |
| **Pro**      | `gpt-5.2-pro`         | Complex challenges, scientific research | Highest accuracy         |

<Warning>
  Different variants are optimized for different scenarios. Thinking and Pro versions excel at complex tasks but cost more. Choose based on your actual needs.
</Warning>

## Practical Applications

### Recommended Scenarios

GPT-5.2 series, with its powerful reasoning, coding, and long-context capabilities, is particularly suitable for:

1. **Complex Reasoning Tasks**: Abstract problem-solving, logical reasoning, mathematical proofs
2. **Software Engineering**: Code generation, bug fixing, architecture design
3. **Scientific Research**: Graduate-level Q\&A, literature review, data analysis
4. **Professional Knowledge Work**: Report writing, solution design, decision support
5. **Long Text Processing**: 400k token context supports complete books and codebases

### Code Examples

#### OpenAI Format (Recommended)

```python theme={null}
from openai import OpenAI

client = OpenAI(
    api_key="your-apiyi-key",
    base_url="https://api.apiyi.com/v1"
)

# Use GPT-5.2 Thinking (recommended for coding tasks)
response = client.chat.completions.create(
    model="gpt-5.2",
    messages=[
        {
            "role": "user",
            "content": "Design a high-performance distributed caching system with architecture diagram and core code..."
        }
    ],
    max_tokens=8192
)

print(response.choices[0].message.content)
```

#### Using GPT-5.2 Pro (Highest Accuracy)

```python theme={null}
# Use GPT-5.2 Pro for complex scientific problems
response = client.chat.completions.create(
    model="gpt-5.2-pro",
    messages=[
        {
            "role": "user",
            "content": "Derive mathematical proof of quantum entanglement and explain its physical significance..."
        }
    ],
    max_tokens=16384
)

print(response.choices[0].message.content)
```

#### Using Locked Version (Enterprise Recommended)

```python theme={null}
# Use locked version for consistent outputs
response = client.chat.completions.create(
    model="gpt-5.2-2025-12-11",  # Locked version
    messages=[
        {
            "role": "user",
            "content": "Analyze key trends in this market report..."
        }
    ]
)
```

### Best Practices

1. **Choose the Right Variant**:
   * **Instant**: Fast writing, email replies, simple queries
   * **Thinking** (default): Coding, planning, structured tasks
   * **Pro**: Scientific research, complex reasoning, critical decisions

2. **Leverage Extended Context**:
   * 400k token context supports \~300k words
   * Suitable for complete codebase analysis and long documents
   * Supports 128k tokens single output

3. **Optimize Costs with Caching**:
   * Cached input gets 90% discount
   * Ideal for scenarios reusing same system prompts
   * High-volume applications can significantly reduce costs

4. **Enterprise Application Tips**:
   * Use locked version (`gpt-5.2-2025-12-11`) for consistent outputs
   * Production environments recommended Thinking or Pro
   * Development/testing can use Instant to reduce costs

## Pricing & Availability

### Pricing Information

| Fee Type         | GPT-5.2 / Thinking  | GPT-5.2 Pro          | GPT-5.1             | Change |
| ---------------- | ------------------- | -------------------- | ------------------- | ------ |
| **Input**        | \$1.75 / 1M tokens  | \$21.00 / 1M tokens  | \$1.25 / 1M tokens  | +40%   |
| **Output**       | \$14.00 / 1M tokens | \$168.00 / 1M tokens | \$10.00 / 1M tokens | +40%   |
| **Cached Input** | \$0.175 / 1M tokens | \$2.10 / 1M tokens   | \$0.125 / 1M tokens | +40%   |

<Info>
  Compared to GPT-5.1, GPT-5.2 pricing increased by 40%, but with significant performance improvements and knowledge cutoff update to August 2025.
</Info>

**Competitor Price Comparison**:

| Model                | Input Price | Output Price | Performance Level |
| -------------------- | ----------- | ------------ | ----------------- |
| **GPT-5.2 Thinking** | **\$1.75**  | **\$14.00**  | GDPval 70.9%      |
| **GPT-5.2 Pro**      | **\$21.00** | **\$168.00** | ARC-AGI 90%       |
| Claude Opus 4.5      | \$5.00      | \$25.00      | SWE-bench 80.9%   |
| Gemini 3 Pro         | \$2.00      | \$12.00      | SWE-bench 76.2%   |
| GPT-5.1              | \$1.25      | \$10.00      | SWE-bench 76.3%   |

<Info>
  GPT-5.2 Thinking offers moderate pricing, while Pro version is expensive but excels at reasoning tasks.
</Info>

### Promotion

**APIYI Top-up Bonus**:

* Top up \$100+, get 10% bonus
* Top up \$500+, get 15% bonus
* Top up \$1000+, get 20% bonus

**Actual Cost**: With bonus promotions, GPT-5.2 series actual costs can be as low as:

* **GPT-5.2 Thinking**: Input \$1.40, Output \$11.20 (80% discount)
* **GPT-5.2 Pro**: Input \$16.80, Output \$134.40 (80% discount)

### Available Models

| Model Name               | Variant  | Description                                    |
| ------------------------ | -------- | ---------------------------------------------- |
| `gpt-5.2`                | Thinking | Default version, ideal for coding and planning |
| `gpt-5.2-2025-12-11`     | Thinking | Locked version for consistent outputs          |
| `gpt-5.2-chat-latest`    | Instant  | Fast response version                          |
| `gpt-5.2-pro`            | Pro      | Highest accuracy version                       |
| `gpt-5.2-pro-2025-12-11` | Pro      | Pro locked version                             |

### Purchase Channels

**APIYI Platform**:

* Website: `apiyi.com`
* API Endpoint: `https://api.apiyi.com/v1`
* Supports OpenAI-compatible format
* Compatible with all OpenAI SDKs

**Other Channels**:

* OpenAI Official API
* Azure OpenAI Service
* AWS Bedrock (coming soon)

## Summary & Recommendations

GPT-5.2 series release marks OpenAI's comprehensive breakthrough in reasoning, science, and professional knowledge work. Particularly, GPT-5.2 Pro's 90% achievement on ARC-AGI-1 (first to cross this threshold) while reducing costs by 390× demonstrates strong technical prowess.

**Core Advantages**:

* **Reasoning Champion**: 90% on ARC-AGI-1, first to cross this threshold
* **Professional Capability**: 70.9% on GDPval beats professionals
* **Extended Context**: 400k token context, 128k token output
* **Updated Knowledge**: Cutoff advanced to August 31, 2025

**Usage Recommendations**:

1. **Daily Tasks**: Use Instant variant, fast and cost-effective
2. **Coding Development**: Use Thinking variant (default `gpt-5.2`), strong logical reasoning
3. **Scientific Research**: Use Pro variant, highest accuracy
4. **Enterprise Production**: Use locked version (`gpt-5.2-2025-12-11`), consistent outputs

**Who Should Use GPT-5.2**:

* Researchers needing strong reasoning capabilities
* Developers handling complex coding tasks
* Professionals seeking latest knowledge
* Codebase analysis scenarios requiring extended context

**Variant Selection Guide**:

* **Cost-Sensitive**: GPT-5.1 remains value choice (\$1.25/\$10)
* **Performance-Focused**: GPT-5.2 Thinking balances performance and cost
* **Ultimate Pursuit**: GPT-5.2 Pro for most complex tasks

APIYI has fully launched GPT-5.2 series with OpenAI-compatible API support. Register and top-up now to enjoy bonus promotions and experience OpenAI's latest reasoning capabilities!

<Info>
  Information sources: OpenAI official blog (December 11, 2025), TechCrunch, CNBC, VentureBeat, and other authoritative media reports. Data retrieved: December 13, 2025.
</Info>