Last refreshed 2026-06-15. Next refresh: weekly.
Why use GPT-3.5 Turbo 16k on OpenRouter?
OpenRouter offers GPT-3.5 Turbo 16k with pay-as-you-go pricing at $3.00/1M 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 16k across 3 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-turbo-16kopenai/gpt-3.5-turbo-16kRequest example
openai/gpt-3.5-turbo-16k.Gotchas
- Use provider model ID "openai/gpt-3.5-turbo-16k", not the LLMReference slug "gpt-3.5-turbo-16k".
Compare GPT-3.5 Turbo 16k Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Azure OpenAI | $0.50 | $2.00 |
| Salesforce Einstein Generative AI | — | — |
| OpenRouter | $3.00 | $4.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $3.00 |
| Output tokens | $4.00 |
Capabilities
About GPT-3.5 Turbo 16k
GPT-3.5 Turbo 16k, developed by OpenAI, is an advanced language model featuring a significantly enhanced context window of 16,384 tokens—four times larger than its predecessor's 4,096 tokens 245. This extension allows it to process and comprehend extended texts, up to approximately 20 pages, in a single interaction, while maintaining the speed and efficiency of earlier versions 10. Although it is a chat-centric model not compatible with the completions endpoint 8, it remains highly effective for tasks requiring prolonged relevance and coherence through OpenAI's API 46.