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OpenAI: GPT-3.5 Turbo

OpenAI

OpenAI: GPT-3.5 Turbo by OpenAI costs $0.50 per 1M input tokens and $1.50 per 1M output tokens, with a 16K-token context window.

Pricing

Input (per 1M tokens)
$0.50
Output (per 1M tokens)
$1.50
Cached input (per 1M)
—
ProviderInput / 1MOutput / 1M
openrouter$0.50$1.50
OpenAI$0.50$1.50

Specifications

Provider
OpenAI
Context window
16K tokens
Parameters
20B
Released
Mar 2023
Open weights
No
Frontier model
No

Benchmarks

Speed & latency

Time to first token
0.56s

Fastest host: openai (via vercel-ai-gateway).

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FAQ

How much does OpenAI: GPT-3.5 Turbo cost?

OpenAI: GPT-3.5 Turbo is priced at $0.50 per 1M input tokens and $1.50 per 1M output tokens. Output tokens cost more than input.

What is OpenAI: GPT-3.5 Turbo's context window?

OpenAI: GPT-3.5 Turbo supports a context window of 16K tokens — the maximum prompt plus response length it can handle in a single request.

Is OpenAI: GPT-3.5 Turbo open weight?

No — OpenAI: GPT-3.5 Turbo is a closed/proprietary model accessed via API.

Data as of 2026-10-14. Source: Pricing via OpenRouter API, openrouter.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.