OpenAI: GPT-3.5 Turbo 16k, OpenAI — route, pricing & source

This model offers four times the context length of gpt-3.5-turbo, allowing it to support approximately 20 pages of text in a single request at a higher cost. Training data: up...

OpenRoutermediumLast checked: May 14, 2026
Input
$3.00 / 1M
/ 1M tokens
Output
$4.00 / 1M
/ 1M tokens
Cached input
Not available
Not available
Cache write
Not available
Not available

Context and limits

Context window
16.4K
Max output
4,096
Input modalities
text
Output modalities
text
Weight access
Closed
Availability
Unknown
Capability flags
ToolsJSON

From source metadata + verification fields — confirm provider docs before production.

Benchmarks
No safely merged benchmark result for this model yet.

Access and license

Official API
No
Open weights
No
Self-hostable
No
License
Closed · API onlyNo public weights: use through a vendor’s cloud API or product. “Proprietary” means the creator does not distribute the trained model weights for self-hosting.

Source

Source
OpenRouter Models API
Confidence
medium
Route
OpenRouter
Last checked
May 14, 2026
Open source
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