GPT-3.5 Turbo 16k
GPT-3.5 Turbo 16k is OpenAI's language model with a 16K context window and up to 4K output tokens, available from 3 providers, starting at $3.00 / 1M input and $4.00 / 1M output. An extended-context variant of GPT-3.5 Turbo supporting up to 16,384 tokens, suitable for longer documents and multi-turn conversations.
Capabilities
Input1/5
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Output1/5
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Capabilities4/13
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Pricing by Provider
| Provider | Standard | Batch | ||
|---|---|---|---|---|
| Input $ / 1M | Output $ / 1M | Input $ / 1M | Output $ / 1M | |
 Azure AI Foundry | $3.00 | $4.00 | $1.50 | $2.00 |
OpenAI | $3.00 | $4.00 | — | — |
 OpenRouter | $3.00 | $4.00 | — | — |
Cost Calculator
Preset:
Compares every provider & tier in USD
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| GPT-5.5 | 1.1M | $5.00 | $30.00 | Available | |
| GPT-5.4 Mini | 1.1M | $0.750 | $4.50 | Available | |
| GPT-5.4 Nano | 1.1M | $0.200 | $1.25 | Available | |
| GPT-5.4 | 1.1M | $2.50 | $15.00 | Available | |
| GPT-5.3 Codex | 400K | $1.75 | $14.00 | Available | |
| GPT-5.2 Codex | 400K | $1.75 | $14.00 | Available | |
| GPT-5.2 | 410K | $1.75 | $14.00 | Available | |
| GPT-5.1 | 410K | $1.25 | $10.00 | Available | |
| GPT-5.1 Codex | 400K | $1.25 | $10.00 | Available | |
| GPT-5.1 Codex Mini | 400K | $0.250 | $2.00 | Available | |
| GPT-3.5 Turbo 16k | 16K | $3.00 | $4.00 | Current |