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

OpenAI: GPT-3.5 Turbo accepts up to 16,385 tokens in a single request, and can return up to 4,096 output tokens.

Is there a cheaper OpenRouter model than OpenAI: GPT-3.5 Turbo?

Yes. MythoMax 13B is $0.080 per 1M input tokens versus $0.500 for OpenAI: GPT-3.5 Turbo, with a 8,192 token context window.

Where does this OpenAI: GPT-3.5 Turbo price come from?

From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

OpenAI: GPT-3.5 Turbo pricing

GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks. Training data up to Sep 2021. OpenAI: GPT-3.5 Turbo from OpenRouter costs $0.500 per 1M input tokens and $1.50 per 1M output tokens. Context window 16,385 tokens.

API id openai/gpt-3.5-turbo · OpenRouter · source · updated 2026-09-25 · general-purpose

$0.500

Input / 1M tokens

$1.50

Output / 1M tokens

—

Cached input / 1M

16K

Context window

OpenAI: GPT-3.5 Turbo specifications

Provider: OpenRouter
API id: openai/gpt-3.5-turbo
Model type: general-purpose
Context window: 16K tokens
Max output: 4K tokens
Currency: USD
Price source: Provider API
Last checked: 2026-09-25

gpt-3.5-turbo across providers

The same model, priced by every seller we track. Ranked by the cost of 1M input + 1M output tokens, standard tier; savings measured against buying from the vendor directly.

Provider	Input /1M	Cached /1M	Output /1M	1M in + 1M out	vs vendor
OpenAIVendorCheapest	$0.500	—	$1.50	$2.00	—
OpenRouterHostviewing	$0.500	—	$1.50	$2.00	—

What OpenAI: GPT-3.5 Turbo costs in practice

Estimated cost at common usage volumes
Workload	Input tokens	Output tokens	Estimated cost
Short chat turn	1,000	500	$0.0013
Document summary	50,000	2,000	$0.03
1M tokens in, 200K out	1,000,000	200,000	$0.80

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Common questions

How much does OpenAI: GPT-3.5 Turbo cost per 1M tokens?: OpenAI: GPT-3.5 Turbo costs $0.500 per 1M input tokens and $1.50 per 1M output tokens on the standard tier.
What is OpenAI: GPT-3.5 Turbo's context window?: OpenAI: GPT-3.5 Turbo accepts up to 16,385 tokens in a single request, and can return up to 4,096 output tokens.
Is there a cheaper OpenRouter model than OpenAI: GPT-3.5 Turbo?: Yes. MythoMax 13B is $0.080 per 1M input tokens versus $0.500 for OpenAI: GPT-3.5 Turbo, with a 8,192 token context window.
Where does this OpenAI: GPT-3.5 Turbo price come from?: From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Head-to-head comparisons

Compare OpenAI: GPT-3.5 Turbo with another model →

Other OpenRouter models

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