OpenAI: GPT-3.5 Turbo 16k API pricing

OpenAI: GPT-3.5 Turbo 16k costs per 1M tokens, normalized from the live OpenRouter feed — plus every comparable model that's cheaper.

Token Price Index › Browse › OpenAI: GPT-3.5 Turbo 16k

OpenAI: GPT-3.5 Turbo 16k from OpenAI costs $3.00/M input / $4.00/M output per 1M tokens ($3.25/M blended). 356 comparable models are cheaper — the cheapest, MiniMax: MiniMax M3.1 Flash (free) at Free blended, is about 100% cheaper. Your row is highlighted below.

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ModelContextInput $/MOutput $/MBlended $/M
OpenAI: GPT-3.5 Turbo 16k
openai
16,385$3.00/M$4.00/M$3.25/M
MiniMax: MiniMax M3.1 Flash (free)visionfree
minimax
1,000,000FreeFreeFree
XingChen: Xing4.0 29B A4B (free)free
xingchen-agi
262,144FreeFreeFree
NVIDIA: Nemotron 3.5 Super VL (free)visionfree
nvidia
1,000,000FreeFreeFree
Dots Studio: Dots3-Note Preview (free)visionfree
dots-studio
512,000FreeFreeFree
LiquidAI: LFM2.5-2.6B (free)free
liquid
65,536FreeFreeFree
NVIDIA: Nemotron 3.5 Lightning (free)free
nvidia
1,000,000FreeFreeFree
Thinking Machines: Inkling Small (free)visionfree
thinkingmachines
1,048,576FreeFreeFree
Poolside: Laguna S 2.1 (free)free
poolside
262,144FreeFreeFree
Thinking Machines: Inkling (free)visionfree
thinkingmachines
1,048,576FreeFreeFree
Poolside: Laguna XS 2.1 (free)free
poolside
262,144FreeFreeFree
Cohere: North Mini Code (free)free
cohere
256,000FreeFreeFree
NVIDIA: Nemotron 3.5 Content Safety (free)visionfree
nvidia
128,000FreeFreeFree
NVIDIA: Nemotron 3 Ultra (free)free
nvidia
1,000,000FreeFreeFree
NVIDIA: Nemotron 3 Nano Omni (free)visionfree
nvidia
256,000FreeFreeFree
Google: Gemma 4 26B A4B (free)visionfree
google
262,144FreeFreeFree

Frequently asked questions

How much does OpenAI: GPT-3.5 Turbo 16k cost per 1M tokens?
OpenAI: GPT-3.5 Turbo 16k costs $3.00/M for input and $4.00/M for output per 1M tokens, a blended $3.25/M (weighting input 3:1 over output). Pulled live from the OpenRouter API and updated daily.
Is there a cheaper alternative to OpenAI: GPT-3.5 Turbo 16k?
The cheapest comparable alternative right now is MiniMax: MiniMax M3.1 Flash (free) at Free blended — roughly 100% cheaper than OpenAI: GPT-3.5 Turbo 16k. Whether it fits depends on your quality bar; the table lists 15 cheaper options.
What is OpenAI: GPT-3.5 Turbo 16k's context window?
OpenAI: GPT-3.5 Turbo 16k supports a context window of 16,385 tokens . Larger context lets you pass more text or documents in a single call.
How can I get alerted when OpenAI: GPT-3.5 Turbo 16k changes price?
Token Price Index Pro ($9/mo) emails you the moment OpenAI: GPT-3.5 Turbo 16k — or any model you follow — changes price, so you never overpay after a hike or miss a drop.

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Data: OpenRouter public model API, normalized to $/1M tokens. Blended = (3×input + output)/4. Generated 19 Oct 2026 22:00 UTC. Prices change often — confirm on the provider before committing spend.