UltraGPT
OpenAI: GPT-3.5 Turbo 16k
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...
Intelligence overview
16.4K tok
Context window
4.1K tok
Max output
What OpenAI: GPT-3.5 Turbo 16k can do.
Development
Tool calling
Calls external functions mid-response, then continues reasoning from the result.
Structured output
Returns responses constrained to a JSON schema, ready to parse without cleanup.
Streaming
Streams tokens as they're generated instead of waiting on the full response.
Pay for what you use.
Every model in UltraGPT runs behind one flat subscription — this is the underlying per-token cost the catalog tracks.
$3 / 1M tok
$4 / 1M tok
Built for serious work.
Build
Generate and refactor code, with the ability to run and verify tool calls and return structured, parseable output.
Ask OpenAI: GPT-3.5 Turbo 16k anything.
A preview of the real UltraGPT composer — the model you see here is the model you get.
Continues in the UltraGPT app — one login, every model.
How OpenAI: GPT-3.5 Turbo 16k stacks up.
The closest models in the catalog by provider, capability and score — real entries, pulled from the same directory.
Technical details.
Specification
- Context window
- 16.4K tokens
- Max output
- 4.1K tokens
- Input modalities
- Text
- Output modalities
- Text
- Knowledge cutoff
- Sep 30, 2021
- Release date
- Aug 28, 2023
- Streaming
- Supported
- Tool calling
- Supported
- JSON mode
- Supported
More from OpenAI, and everything else.
This model is one entry in the full UltraGPT catalog — browse the rest, compare pricing and context windows, or filter by capability.