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

# Popular AI Models

> Browse 200+ AI models with detailed information, pricing, and recommendations. GPT-5.2, Claude Opus 4.5, Gemini 3, Veo 3.1 and more (January 2026).

## Current Model Recommendations (Updated January 2026)

LaoZhang API supports 200+ mainstream AI models. This page provides detailed model information, pricing, and usage guidance. Covering the latest models including GPT-5.2, GPT-5.1, Claude Opus 4.5, Gemini 3, and Veo 3.1.

**Enterprise-Grade Professional AI Model API Gateway**
All models are sourced directly from official providers with competitive pricing, pay-as-you-go billing, and long-term reliable service.

## 🔥 Currently Recommended Models

Below are the currently available popular models. For the complete model list and real-time pricing, visit [LaoZhang API Console Pricing Page](https://api.yelinai.com/account/pricing).

## Model Categories

### 🤖 OpenAI Series

#### GPT-5.2 Series (Latest, January 2026) 🔥

| Model Name              | Model ID                         | Context | Features                                  | Recommended Use                |
| ----------------------- | -------------------------------- | ------- | ----------------------------------------- | ------------------------------ |
| **GPT-5.2** ⭐⭐          | `gpt-5.2` / `gpt-5.2-2025-12-11` | 128K    | 30% less hallucination, professional work | Professional tasks, enterprise |
| **GPT-5.2 Chat Latest** | `gpt-5.2-chat-latest`            | 128K    | Always latest version                     | Latest features                |

#### GPT-5.1 Series (November 2025) 🔥

| Model Name               | Model ID                         | Context | Features                     | Recommended Use          |
| ------------------------ | -------------------------------- | ------- | ---------------------------- | ------------------------ |
| **GPT-5.1** ⭐⭐           | `gpt-5.1` / `gpt-5.1-2025-11-13` | 128K    | Strong performance, balanced | General advanced tasks   |
| **GPT-5.1-Codex** ⭐⭐     | `gpt-5.1-codex`                  | 128K    | Coding specialized           | Programming development  |
| **GPT-5.1-Codex High** ⭐ | `gpt-5.1-codex-high`             | 128K    | High performance coding      | Complex coding tasks     |
| **GPT-5.1-Codex Mini**   | `gpt-5.1-codex-mini`             | 128K    | Lightweight coding           | Quick coding, completion |

#### GPT-5 Series (August 2025)

| Model Name     | Model ID                               | Context | Features              | Recommended Use          |
| -------------- | -------------------------------------- | ------- | --------------------- | ------------------------ |
| **GPT-5**      | `gpt-5` / `gpt-5-2025-08-07`           | 128K    | First gen GPT-5       | General tasks            |
| **GPT-5 Pro**  | `gpt-5-pro` / `gpt-5-pro-2025-10-06`   | 128K    | Professional version  | Enterprise applications  |
| **GPT-5 Mini** | `gpt-5-mini` / `gpt-5-mini-2025-08-07` | 128K    | Lightweight efficient | Cost-sensitive scenarios |
| **GPT-5 Nano** | `gpt-5-nano` / `gpt-5-nano-2025-08-07` | 128K    | Ultra-lightweight     | Batch processing         |

#### Reasoning Models

| Model Name     | Model ID                         | Context | Features              | Recommended Use    |
| -------------- | -------------------------------- | ------- | --------------------- | ------------------ |
| **o3-pro** ⭐⭐  | `o3-pro`                         | 200K    | Strongest reasoning   | Top-tier reasoning |
| **o3** ⭐       | `o3` / `o3-2025-04-16`           | 200K    | Latest reasoning      | Complex reasoning  |
| **o4-mini** ⭐⭐ | `o4-mini` / `o4-mini-2025-04-16` | 200K    | Lightweight reasoning | Programming tasks  |

#### GPT-4 Series

| Model Name        | Model ID                                   | Context | Features               | Recommended Use      |
| ----------------- | ------------------------------------------ | ------- | ---------------------- | -------------------- |
| **GPT-4.1** ⭐     | `gpt-4.1` / `gpt-4.1-2025-04-14`           | 128K    | Fast speed             | General applications |
| **GPT-4.1 Mini**  | `gpt-4.1-mini` / `gpt-4.1-mini-2025-04-14` | 128K    | Affordable lightweight | Cost-sensitive       |
| **GPT-4.1 Nano**  | `gpt-4.1-nano` / `gpt-4.1-nano-2025-04-14` | 128K    | Ultra-low-cost         | High-volume          |
| **GPT-4o**        | `gpt-4o`                                   | 128K    | Balanced multimodal    | General scenarios    |
| **GPT-4o Mini**   | `gpt-4o-mini`                              | 128K    | Lightweight fast       | Quick responses      |
| **GPT-3.5 Turbo** | `gpt-3.5-turbo`                            | 16K     | Classic economical     | Daily conversations  |

#### Image Generation

| Model Name              | Model ID           | Features                       | Recommended Use          |
| ----------------------- | ------------------ | ------------------------------ | ------------------------ |
| **GPT-Image-1.5** ⭐⭐    | `gpt-image-1.5`    | Latest version, higher quality | Professional design      |
| **GPT-Image-1** ⭐       | `gpt-image-1`      | High cost-performance          | General image generation |
| **GPT-Image-1 Mini**    | `gpt-image-1-mini` | Lightweight fast               | Quick generation         |
| **Flux Kontext Max** ⭐⭐ | `flux-kontext-max` | Highest quality                | Professional design      |
| **Flux Kontext Pro** ⭐  | `flux-kontext-pro` | Professional quality           | Commercial design        |
| **DALL·E 3**            | `dall-e-3`         | Classic generation             | Standard tasks           |

#### Video Generation

| Model Name             | Model ID                      | Features                 | Recommended Use     |
| ---------------------- | ----------------------------- | ------------------------ | ------------------- |
| **Sora 2 Pro** ⭐       | `sora-2-pro` (Async API only) | HD video (\$0.8/call)    | High-quality video  |
| **Sora 2 Character** ⭐ | `sora-2-character`            | Character generation     | Character animation |
| **Veo 3.1** ⭐⭐         | `veo-3.1`                     | Latest version, improved | Standard video      |
| **Veo 3.1 Fast**       | `veo-3.1-fast`                | Quick version            | Fast prototyping    |
| **Veo 3.1 FL**         | `veo-3.1-fl`                  | Frame-level control      | Fine control        |
| **Veo 3 Pro** ⭐        | `veo3-pro`                    | Highest quality          | Professional video  |

#### Image Generation Models

| Model Name        | Model ID       | Supported Sizes | Features                        | Pricing           |
| ----------------- | -------------- | --------------- | ------------------------------- | ----------------- |
| **GPT-Image-1** ⭐ | `gpt-image-1`  | 1024×1024 etc.  | High-value image generation     | See documentation |
| **Sora Image**    | `sora_image`   | Multiple sizes  | Reverse-engineered model        | See documentation |
| **GPT-4o Image**  | `gpt-4o-image` | Multiple sizes  | Conversational image generation | See documentation |
| **DALL·E 3**      | `dall-e-3`     | 1024×1024 etc.  | Classic image generation        | Billed by size    |

**Image Generation Testing Tool**
Visit \[imagen.YeLIn AI]\([https://imagen.YeLIn](https://imagen.YeLIn) AI/) to experience various image generation models.Detailed documentation:

* [GPT-Image-1 Documentation](/en/api-capabilities/gpt-image-1)
* [Image Generation Guide](/en/api-reference/images)

### 🎭 Claude Series (Anthropic)

#### Claude Opus 4.5 (Most Intelligent, November 2025) 🔥

| Model Name                      | Model ID                            | Context | Features                           | Recommended Use       |
| ------------------------------- | ----------------------------------- | ------- | ---------------------------------- | --------------------- |
| **Claude Opus 4.5** ⭐⭐          | `claude-opus-4-5-20251101`          | 200K    | Most intelligent, effort parameter | Top tasks, enterprise |
| **Claude Opus 4.5 Thinking** ⭐⭐ | `claude-opus-4-5-20251101-thinking` | 200K    | Chain-of-thought mode              | Complex reasoning     |

#### Claude 4.5 Sonnet Series (September 2025)

| Model Name                       | Model ID                              | Context | Features           | Recommended Use   |
| -------------------------------- | ------------------------------------- | ------- | ------------------ | ----------------- |
| **Claude 4.5 Sonnet** ⭐⭐         | `claude-sonnet-4-5-20250929`          | 200K    | Top coding ability | Code generation   |
| **Claude 4.5 Sonnet Thinking** ⭐ | `claude-sonnet-4-5-20250929-thinking` | 200K    | Chain-of-thought   | Complex reasoning |
| **Claude Haiku 4.5**             | `claude-haiku-4-5-20251001`           | 200K    | Lightweight fast   | Quick response    |

#### Claude 4 Series (May 2025)

| Model Name            | Model ID                   | Context | Features         | Recommended Use   |
| --------------------- | -------------------------- | ------- | ---------------- | ----------------- |
| **Claude 4 Sonnet** ⭐ | `claude-sonnet-4-20250514` | 200K    | Stable version   | Code generation   |
| **Claude 4.1 Opus**   | `claude-opus-4-1-20250805` | 200K    | Enhanced version | High-demand tasks |

#### Claude 3.7 Series (February 2025)

| Model Name            | Model ID                                                  | Context | Features        | Recommended Use   |
| --------------------- | --------------------------------------------------------- | ------- | --------------- | ----------------- |
| **Claude 3.7 Sonnet** | `claude-3-7-sonnet-20250219` / `claude-3-7-sonnet-latest` | 200K    | Latest Claude 3 | General scenarios |

#### Claude 3.5 Series (Classic)

| Model Name            | Model ID                   | Context | Features             | Recommended Use   |
| --------------------- | -------------------------- | ------- | -------------------- | ----------------- |
| **Claude 3.5 Sonnet** | `claude-3-5-sonnet-latest` | 200K    | Balanced performance | General scenarios |
| **Claude 3.5 Haiku**  | `claude-3-5-haiku-latest`  | 200K    | Lightweight fast     | Daily tasks       |

### 🌟 Google Gemini Series

#### Gemini 3 Series (Latest, Next Gen) 🔥

| Model Name                          | Model ID                        | Context | Features                     | Recommended Use           |
| ----------------------------------- | ------------------------------- | ------- | ---------------------------- | ------------------------- |
| **Gemini 3 Pro Preview** ⭐⭐         | `gemini-3-pro-preview`          | 2M      | Next-gen flagship            | Advanced tasks, long text |
| **Gemini 3 Pro Preview Thinking** ⭐ | `gemini-3-pro-preview-thinking` | 2M      | Chain-of-thought             | Complex reasoning         |
| **Gemini 3 Flash Preview** ⭐⭐       | `gemini-3-flash-preview`        | 1M      | Lightning speed, new default | Quick response            |
| **Gemini 3 Pro Image Preview** ⭐    | `gemini-3-pro-image-preview`    | -       | Image generation             | Image tasks               |

#### Gemini 2.5 Series (2025)

| Model Name                  | Model ID                                  | Context | Features                     | Recommended Use       |
| --------------------------- | ----------------------------------------- | ------- | ---------------------------- | --------------------- |
| **Gemini 2.5 Pro** ⭐        | `gemini-2.5-pro`                          | 2M      | Coding advantage, multimodal | Production env        |
| **Gemini 2.5 Flash** ⭐      | `gemini-2.5-flash`                        | 1M      | Fast speed, low cost         | Quick response        |
| **Gemini 2.5 Flash Image**  | `gemini-2.5-flash-image`                  | -       | Image generation             | Image tasks           |
| **Gemini 2.5 Computer Use** | `gemini-2.5-computer-use-preview-10-2025` | -       | Computer use preview         | AI agents, automation |

#### Gemini 2.0 Series

| Model Name           | Model ID               | Context | Features     | Recommended Use |
| -------------------- | ---------------------- | ------- | ------------ | --------------- |
| **Gemini 2.0 Flash** | `gemini-2.0-flash-001` | 1M      | Experimental | Early access    |

#### Gemini 1.5 Series (Classic)

| Model Name         | Model ID                | Context | Features       | Recommended Use |
| ------------------ | ----------------------- | ------- | -------------- | --------------- |
| **Gemini 1.5 Pro** | `gemini-1.5-pro-latest` | 2M      | Stable classic | Production env  |

### 🚀 xAI Grok Series

| Model Name                | Model ID                 | Features                | Recommended Use   |
| ------------------------- | ------------------------ | ----------------------- | ----------------- |
| **Grok 4** ⭐              | `grok-4` / `grok-4-0709` | Latest official version | General tasks     |
| **Grok 4 Fast Reasoning** | `grok-4-fast-reasoning`  | Fast reasoning          | Quick reasoning   |
| **Grok 4 Fast**           | `grok-4-fast`            | Speed optimized         | Quick response    |
| **Grok 3**                | `grok-3-latest`          | Stable version          | Daily use         |
| **Grok 3 DeepSearch**     | `grok-3-deepsearch`      | Deep search, per-call   | Web search        |
| **Grok 3 Mini**           | `grok-3-mini-latest`     | Small with reasoning    | Lightweight tasks |

### 🔍 DeepSeek Series

| Model Name              | Model ID                           | Context | Features                  | Recommended Use        |
| ----------------------- | ---------------------------------- | ------- | ------------------------- | ---------------------- |
| **DeepSeek V3.2 Exp** ⭐ | `deepseek-v3.2-exp`                | 128K    | Experimental latest       | Test new features      |
| **DeepSeek V3.1** ⭐     | `deepseek-v3-1-250821`             | 128K    | Think/Non-Think dual mode | Reasoning, programming |
| **DeepSeek V3**         | `deepseek-v3`                      | 128K    | Strong capability         | General scenarios      |
| **DeepSeek R1**         | `deepseek-r1` / `deepseek-r1-0528` | 64K     | Reasoning model           | Math, reasoning        |

### 🐘 Chinese Models

#### Alibaba Qwen QwQ Series (Reasoning) 🔥

| Model Name          | Model ID                       | Context | Features               | Recommended Use   |
| ------------------- | ------------------------------ | ------- | ---------------------- | ----------------- |
| **QwQ Plus** ⭐⭐     | `qwq-plus` / `qwq-plus-latest` | 32K     | Latest reasoning model | Complex reasoning |
| **QwQ 72B Preview** | `qwq-72b-preview`              | 32K     | Preview version        | Test features     |

#### Alibaba Qwen Coder 3 Series (Coding) 🔥

| Model Name              | Model ID                         | Parameters        | Features           | Recommended Use |
| ----------------------- | -------------------------------- | ----------------- | ------------------ | --------------- |
| **Qwen3 Coder 480B** ⭐⭐ | `qwen3-coder-480b-a35b-instruct` | 480B (35B active) | Large coding model | Complex coding  |
| **Qwen3 Coder Plus** ⭐  | `qwen3-coder-plus`               | -                 | Enhanced coding    | Standard coding |

#### Other Chinese Models

| Model Name                  | Model ID                    | Context | Features                    |                   |
| --------------------------- | --------------------------- | ------- | --------------------------- | ----------------- |
| **Kimi K2 Official** ⭐      | `kimi-k2-250711`            | 200K    | Stable, reliable            |                   |
| **Llama 4 Maverick** ⭐      | `llama-4-maverick`          | -       | Latest open source          |                   |
| **SeeKDream 4.5** ⭐⭐        | `seedream-4-5-251128`       | -       | Video/image generation      |                   |
| **Doubao 1.5 Vision Pro** ⭐ | `Doubao-1.5-vision-pro-32k` | 32K     | Multimodal                  |                   |
| **Gemma 3 12B**             | `gemma-3-12b`               | -       | Google open source          |                   |
| **DeepSeek V3**             | `deepseek-v3`               | 128K    | Strong overall capabilities | General scenarios |
| **DeepSeek Chat**           | `deepseek-chat`             | 128K    | Chat-optimized version      | Chat applications |
| **DeepSeek Coder**          | `deepseek-coder`            | 128K    | Code-specialized model      | Programming tasks |

### 🐘 Chinese Language Models

#### Alibaba Qwen Series

| Model Name     | Model ID       | Context Length | Features                |
| -------------- | -------------- | -------------- | ----------------------- |
| **Qwen Max**   | `qwen-max`     | 32K            | Strongest version       |
| **Qwen Plus**  | `qwen-plus`    | 32K            | Enhanced version        |
| **Qwen Turbo** | `qwen-turbo`   | 32K            | Fast version            |
| **Qwen 2.5**   | `qwen-2.5-72b` | 128K           | Open-source large model |

#### Moonshot Kimi Series

| Model Name             | Model ID         | Context Length | Features                               |
| ---------------------- | ---------------- | -------------- | -------------------------------------- |
| **Kimi K2 Official** ⭐ | `kimi-k2-250711` | 200K           | Official partnership, strong stability |

#### Other Chinese Models

| Model Name    | Model ID          | Features                    |
| ------------- | ----------------- | --------------------------- |
| **ERNIE 4.0** | `ernie-4.0`       | Baidu’s latest model        |
| **GLM-4**     | `glm-4`           | Tsinghua-based model        |
| **Spark 3.5** | `spark-3.5`       | iFlytek’s latest version    |
| **MiniMax**   | `minimax-abab6.5` | Strong overall capabilities |

## 💰 Pricing Information

### Billing Method

* **Pay-as-you-go**: Charged based on actual token usage
* **No minimum charge**: Use what you pay for, balance never expires
* **Real-time deduction**: Fees deducted immediately after each call

### Pricing Advantage

* Direct from official sources with competitive rates
* Volume discounts available - contact support for bulk pricing
* New users receive \$0.5 free trial credit

### View Real-time Pricing

Visit [LaoZhang API Console Pricing Page](https://api.yelinai.com/account/pricing) to view the latest prices for all models.

## 🛠️ Usage Recommendations

### Model Selection Guide

**Programming Development**

* Primary: Claude 4 Sonnet, DeepSeek V3.1, o4-mini, Gemini 2.5 Pro
* Alternatives: DeepSeek Coder, Kimi K2 Official, Qwen 3

**Content Creation**

* Primary: GPT-4.5 (excellent for writing), Claude 4 Opus
* Alternatives: GPT-4o, chatgpt-4o-latest, Kimi K2 Official, Qwen Max

**Quick Response**

* Primary: GPT-3.5 Turbo, Gemini 2.5 Flash
* Alternatives: Claude 3 Haiku, Grok 3 Mini

**Image Generation**

* Stability priority: GPT-Image-1
* Quality priority: DALL·E 3
* Cost-effective: Sora Image, GPT-4o Image

**Long Text Processing**

* Primary: Gemini 2.5 Pro (2M context)
* Alternatives: Claude 4 series (200K context)

### Cost Optimization Tips

1. **Tiered Usage**: Use cheaper models for simple tasks, premium models for complex ones
2. **Test and Optimize**: Test with smaller models first, then scale up as needed
3. **Batch Processing**: Choose Nano or Mini versions for large volumes of similar tasks
4. **Cache and Reuse**: Cache results for repeated queries

## 🔗 Related Resources

* \[Model Comparison Testing]\([https://imagen.YeLIn](https://imagen.YeLIn) AI/) - Image generation comparison
* [Real-time Pricing](https://api.yelinai.com/account/pricing) - Latest pricing information
* [API Documentation](/en/api-manual) - Detailed interface specifications
* [Quick Start](/en/getting-started) - Integration guide

Model list is continuously updated. We promptly add newly released excellent models. For specific model needs or bulk requirements, please contact support.