GPT-5 Limited Time Offer! As the most advanced AI system from OpenAI to date, GPT-5 excels in reasoning, coding, and multimodal understanding. The limited-time discount launched through the OpenRouter platform will further lower the access barrier for users, helping global developers and enterprises explore its potential.
Details of the Promotion: 50% Discount Within One Week
According to the latest information, the OpenRouter platform offers a 50% discount on the GPT-5 model from 10:00 AM Pacific Standard Time on September 17, 2025, to 10:00 AM on September 24. This promotion does not require users to apply or select it manually; it will take effect automatically, allowing users to easily experience this top-tier AI model. Specifically, the discount applies to input tokens at $0.625 per million and output tokens at $5 per million, but with a limit of 20 requests per minute (RPM). After exceeding this limit, the standard price will be restored. This initiative aims to encourage more users to try GPT-5, especially suitable for scenarios requiring intensive computing tasks.
Key Features of the GPT-5 Model: Enhanced Reasoning and Applications
GPT-5 is the flagship AI model released by OpenAI in 2025. It has made significant progress compared to previous products in areas such as mathematics, coding, visual perception, and health. For example, in the AIME2025 math benchmark test, its score without tools reached 94.6%; in the SWE-bench Verified coding test, it reached 74.9%; the multimodal understanding (MMMU) score was 84.2%; and the health benchmark (HealthBench Hard) reached 46.2%. The model supports a context window of up to 400,000 tokens and an output of 128,000 tokens, optimizing step-by-step reasoning and instruction following for complex tasks. Additionally, GPT-5 allows users to adjust the "reasoning effort" setting in platforms like ChatGPT, performing particularly well in high-intensity modes, suitable for high-risk applications such as agent-style coding and graduate-level scientific problem solving.
Industry Impact and User Feedback
This discount promotion has quickly sparked discussions within the AI community, with many developers viewing it as an excellent opportunity to "get ahead." As a unified API platform, OpenRouter has integrated over 500 models. This promotion not only reduces the access cost of GPT-5 (the standard API pricing is $1.25 per million input tokens and $10 per million output tokens), but also further optimizes the economics of large-scale deployment through a 90% cache discount. Experts point out that this activity may accelerate the popularization of GPT-5 in programming, education, and research fields. Especially in the current competitive AI environment, it helps OpenAI consolidate its market leadership. However, users should note that the discount is limited to the specified rate, and it is recommended to plan usage in advance to maximize benefits.
Future Outlook: More Inclusive AI Ecosystem
With the promotion of GPT-5, AIbase expects more platforms to follow similar initiatives, driving the transformation of models from high-end experiments to mass applications. Developers can use OpenRouter's web chat interface to set high reasoning efforts and maximum chat memory, further enhancing their experience. This event is not only a technical benefit but also marks the increasing accessibility of AI tools, which is worth attention.
