curl --request POST "https://gptproto.com/v1/chat/completions" \
--header "Authorization: Bearer $GPTPROTO_API_KEY" \
--header "Content-Type: application/json" \
--data '{
"model": "gpt-5.2-chat-latest",
"messages": [
{
"role": "user",
"content": "Hello"
}
]
}'Chat, coding agents & document work. Priced per 1M tokens — input, cached input and output are billed separately. GPTProto is 30% below official rates.
OpenAI · ≈ 148M tokens/mo (48M cached)
OpenRouter costs include its ~5.5% credit purchase fee. GPTProto applies a per-model discount (10–30% off) and your bonus credits are also spent at discounted rates — savings compound. Estimates assume a 60% cache hit rate.
| Model | Input → Output | ||||
|---|---|---|---|---|---|
| 128K | $1.23 / $9.80 per 1M | $0.12 / $0.12 per 1M | Input: TextInput: ImageInput: Document Output: Text | |
| — | — | $0.30 / $1.20 per 1M | — / $0.006 per 1M | Input: TextInput: Image Output: Text | |
| 1.05M | $0.79 / $2.38 per 1M | — / $0.04 per 1M | Input: Text Output: Text | ||
| 1.05M | $8.00 / $40.00 per 1M | $10.00 / $0.80 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $0.90 / $4.50 per 1M | $0.60 / $0.09 per 1M | Input: TextInput: ImageInput: VideoInput: DocumentInput: Audio Output: Text | ||
| 1M | $9.00 / $45.00 per 1M | $11.25 / $0.23 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1M | $1.80 / $5.40 per 1M | $2.25 / $0.23 per 1M | Input: TextInput: ImageInput: VideoInput: DocumentInput: Audio Output: Text | ||
| — | 1.31M | $0.15 / $0.50 per 1M | — / $0.03 per 1M | Input: TextInput: ImageInput: VideoInput: Document Output: Text | |
| — | 1.05M | $0.30 / $1.20 per 1M | — / $0.006 per 1M | Input: TextInput: Image Output: Text | |
| 1.31M | $1.26 / $3.96 per 1M | — / $0.23 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $0.90 / $4.50 per 1M | $0.60 / $0.09 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 500K | $1.20 / $3.60 per 1M | — / $0.30 per 1M | Input: TextInput: Image Output: Text | ||
| 1M | $1.80 / $5.40 per 1M | $2.25 / $0.23 per 1M | Input: TextInput: ImageInput: VideoInput: Document Output: Text | ||
| 1M | $4.50 / $22.50 per 1M | $5.63 / $0.45 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $0.90 / $4.50 per 1M | $0.60 / $0.09 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $2.70 / $13.50 per 1M | $0.27 / $0.27 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $0.16 / $0.96 per 1M | $0.20 / $0.02 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $1.60 / $9.60 per 1M | $2.00 / $0.16 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $3.20 / $16.00 per 1M | $4.00 / $0.32 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 500K | $1.20 / $3.60 per 1M | $0.30 / $0.30 per 1M | Input: TextInput: Image Output: Text | ||
| 1M | $1.80 / $9.00 per 1M | $2.25 / $0.18 per 1M | Input: TextInput: Document Output: Text | ||
| 1.05M | $0.48 / $0.96 per 1M | $0.10 / $0.10 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1.05M | $1.26 / $3.96 per 1M | $0.23 / $0.23 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| — | $1.00 / $8.00 per 1M | $0.10 / $0.10 per 1M | Input: TextInput: ImageInput: Document Output: Text | ||
| 1M | $0.36 / $1.44 per 1M | $0.07 / $0.07 per 1M | Input: TextInput: Document Output: Text | ||
| — | 1.05M | $0.30 / $1.20 per 1M | — / $0.006 per 1M | Input: Text Output: Text | |
| 1M | $0.75 / $1.50 per 1M | $0.12 / $0.12 per 1M | Input: TextInput: Image Output: Text | ||
| 1.05M | $24.00 / $144.00 per 1M | — | Input: TextInput: ImageInput: Document Output: Text | ||
| 262K | $0.85 / $3.60 per 1M | $0.14 / $0.14 per 1M | Input: TextInput: Document Output: Text | ||
| 205K | $0.24 / $0.96 per 1M | $0.30 / $0.02 per 1M | Input: TextInput: Document Output: Text | ||
| 262K | $0.54 / $2.70 per 1M | $0.09 / $0.09 per 1M | Input: TextInput: Document Output: Text | ||
| 262K | $0.10 / $0.97 per 1M | — | Input: TextInput: Image Output: Text | ||
| 262K | $0.10 / $0.97 per 1M | — | Input: TextInput: Image Output: Text | ||
| 262K | $0.02 / $0.18 per 1M | — | Input: TextInput: Image Output: Text |
Unlock GPT-5.2-Chat-Latest API: High-Performance Text Generation on GPT Proto
The evolution of artificial intelligence has reached a new milestone with the release of the OpenAI GPT-5.2-chat-latest model. Designed to push the boundaries of reasoning and linguistic precision, this model is now fully accessible through our streamlined platform. Whether you are building an innovative customer service bot or a complex data synthesis engine, you can browse all models on our dashboard to find the perfect fit for your specific technical requirements and performance goals.
Revolutionize Your Workflow with OpenAI GPT-5.2-Chat-Latest Intelligence
The GPT-5.2-chat-latest model represents a paradigm shift in how machines understand and execute human instructions. Unlike previous iterations, this model utilizes a sophisticated reasoning architecture that allows it to "think" through complex problems before generating a final response. On GPT Proto, we provide the infrastructure necessary to leverage these advanced capabilities without the typical latency or integration hurdles. By utilizing the new Responses API, developers can achieve a higher level of consistency and intelligence, ensuring that every output aligns perfectly with the intended business logic. This model is specifically tuned to follow intricate multi-step instructions, making it the ideal choice for developers who require more than just simple chat completion—they require a strategic partner in their software stack.
Master Complex Content Creation with Deep Reasoning Capabilities
One of the standout features of the GPT-5.2-chat-latest model is its ability to handle "reasoning effort" parameters. This allows you to scale the model's cognitive intensity based on the task at hand. For creative writing or high-level strategic planning, the model can dedicate more internal tokens to processing, resulting in prose that is indistinguishable from human experts. When you integrate this model on GPT Proto, you gain the ability to produce everything from technical whitepapers to nuanced marketing copy with unprecedented speed. The model's deep understanding of context means it doesn't just predict the next word; it understands the "why" behind your prompt, delivering results that require minimal editing and offer maximum impact.
Achieve Flawless Technical Logic and Code Generation Consistency
For technical teams, GPT-5.2-chat-latest is a game-changer in the realm of code generation and mathematical problem-solving. It excels at maintaining structural integrity in JSON outputs and following strict programming paradigms. By using the new "developer" role instead of the legacy "system" role, users on GPT Proto can provide authoritative instructions that the model prioritizes above all else. This ensures that even when end-users provide conflicting or ambiguous inputs, the model stays true to the core logic defined by the developer. This precision is essential for building reliable software tools, automated debugging systems, and sophisticated data analysis pipelines where accuracy is non-negotiable.
"GPT-5.2-chat-latest on GPT Proto isn't just an upgrade; it is a fundamental reimagining of what an LLM can achieve when paired with a stable, developer-first integration environment."
Seamless Integration and Global Scaling via the GPT Proto Developer API
Integrating a model as powerful as GPT-5.2-chat-latest into your existing application should not be a daunting task. At GPT Proto, we have optimized our gateway to ensure that the transition to the new Responses API is as smooth as possible. Our platform provides the stability required for enterprise-grade applications, handling high-concurrency demands with ease. If you are new to our ecosystem, we recommend reviewing our comprehensive API documentation to understand the nuances of the Responses structure and the output_text property. By centralizing your API management on GPT Proto, you eliminate the need to juggle multiple vendor keys and complex billing cycles, allowing your team to focus entirely on building great products.
| Feature | Standard Models | OpenAI GPT-5.2 on GPT Proto |
|---|---|---|
| Reasoning Power | Basic heuristic matching | Multi-step cognitive reasoning |
| Cost Efficiency | Variable and often hidden | Optimized enterprise rates |
| Response Speed | Standard queuing | Priority low-latency routing |
| Instruction Following | General adherence | Authoritative developer-role priority |
Transparent Pricing and Instant Balance Management for Your AI Needs
We believe that accessing world-class AI should be transparent and straightforward. GPT Proto operates on a direct-fund basis, meaning you only pay for exactly what you use with no confusing points systems. To get started, simply navigate to our billing portal to top-up your balance. Once you add funds to your account, you have instant access to the full suite of OpenAI models, including the latest GPT-5.2-chat-latest. You can monitor your real-time consumption and manage your API keys directly from your personal dashboard, giving you total control over your project's budget and scaling requirements.
The landscape of artificial intelligence is moving faster than ever, and staying ahead of the curve requires both the right model and the right partner. By choosing GPT-5.2-chat-latest on GPT Proto, you are investing in a future where your applications are smarter, faster, and more reliable. For more insights into the latest AI trends and technical deep dives, feel free to explore our official blog. Start your journey today and experience the pinnacle of text generation technology with a platform designed by developers, for developers.
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