Last refreshed 2026-05-11. Next refresh: weekly.
Why use GPT-3.5 Turbo on OpenRouter?
OpenRouter offers GPT-3.5 Turbo with pay-as-you-go pricing at $0.50/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare GPT-3.5 Turbo across 5 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: openai/gpt-3.5-turboopenai/gpt-3.5-turboRequest example
openai/gpt-3.5-turbo.Gotchas
- Use provider model ID "openai/gpt-3.5-turbo", not the LLMReference slug "gpt-3.5-turbo".
Compare GPT-3.5 Turbo Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Azure OpenAI | $0.50 | $1.50 |
| OpenAI API | $0.50 | $1.50 |
| Salesforce Einstein Generative AI | — | — |
| OpenRouter | $0.50 | $1.50 |
| Replicate API | $0.50 | $1.50 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.50 |
| Output tokens | $1.50 |
Capabilities
About GPT-3.5 Turbo
GPT-3.5 Turbo is an advanced language model developed by OpenAI, showcasing significant advancements over GPT-3 and GPT-3.5. As the engine behind the popular ChatGPT application, it excels in tasks like text generation, translation, question answering, summarization, and code generation. This model employs Reinforcement Learning from Human Feedback (RLHF) to enhance accuracy and produce policy-optimized responses. Despite its prowess, it has a knowledge cutoff of September 2021 and can demonstrate biases from its training data. Occasionally, it may generate incorrect or nonsensical content, known as "hallucination," and is sensitive to input phrasing variations. Additionally, the free version may experience slowdowns due to high demand. Nevertheless, GPT-3.5 Turbo remains a powerful tool with versatile applications across numerous fields.
FAQ
What does GPT-3.5 Turbo cost on OpenRouter?
On OpenRouter, GPT-3.5 Turbo costs $0.5 per 1M input tokens and $1.5 per 1M output tokens.
What is the context window for GPT-3.5 Turbo on OpenRouter?
GPT-3.5 Turbo supports a 16,385 token context window on OpenRouter.
How does OpenRouter compare to other GPT-3.5 Turbo providers?
GPT-3.5 Turbo is available from 5 providers. The cheapest input pricing is $0.5/1M tokens from Azure OpenAI.
What API model ID do I use for GPT-3.5 Turbo on OpenRouter?
Use the model ID openai/gpt-3.5-turbo when calling OpenRouter's API.
Who created GPT-3.5 Turbo?
GPT-3.5 Turbo was created by OpenAI as part of the GPT-3.5 model family.
Is GPT-3.5 Turbo open source?
GPT-3.5 Turbo is not open source; the seed data lists it as proprietary.