openai / text-generation API-only released 2023-08-28

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...

Input / 1M
$3.00
Output / 1M
$4.00
Context
16.4K
AA Intelligence
—
Closed weights — available only as a hosted API text → text Knowledge cutoff Sep 2021 View on OpenRouter ↗

Pricing

via OpenRouter · USD per 1M tokens · synced 2026-10-24
$3.00
input / 1M
$4.00
output / 1M
—
cached input / 1M
$7.00
1M in + 1M out
Context window
16,385 tokens
Max output
4,096 tokens
Providers
2
Cheapest provider
Azure · $3.00 / $4.00
Best throughput
—
AA Intelligence / Coding / Agentic
— / — / —
✓ Tool calling ✗ Reasoning ✓ Structured outputs ✗ Image input ✗ File input ✗ Audio input ✗ Prompt caching

Price history

tracking started — chart appears after 7 days of snapshots (6 recorded)
Current: $3.00 input · $4.00 output per 1M tokens

Providers

2 providers · per 1M tokens · last 30 min metrics
ProviderQuantContextInputOutputUptimeTok/s
Azure unknown 16.4K $3.00 $4.00 — —
OpenAI unknown 16.4K $3.00 $4.00 — —
Provider data from OpenRouter's endpoint listing, refreshed daily.

Specifications

Organisation
openai
Released on OpenRouter
2023-08-28
Context window
16,385 tokens
Max output
4,096 tokens
Input
text
Output
text
Knowledge cutoff
September 2021
Tokenizer
GPT
Moderated by provider
No
OpenRouter id
openai/gpt-3.5-turbo-16k
Compare with
Prices, context and providers from the public OpenRouter API, snapshotted daily; benchmark indices from Artificial Analysis. See /methodology.