GPT-3.5 Turbo

by OpenAIopenai/gpt-3.5-turbo

  • Text
  • No route yet
  • Released
  • Knowledge cutoff 30 September 2021

LLMCompare cannot run GPT-3.5 Turbo yet.No route to this model is configured on this site yet. Its prices and parameters are listed below for reference.

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GPT-3.5 Turbo at a glance

Context length
16,385 tokens
Maximum output
4,096 tokens
Accepts
Text
Returns
Text
Features
JSON outputTool calling
Reasoning effort levels
Not supported
Released
28 May 2023
Knowledge cutoff
30 September 2021

Model facts synced from the OpenRouter model list on 21 Oct 2026.

GPT-3.5 Turbo pricing by route

A route is the service LLMCompare calls to reach the model. GPT-3.5 Turbo has 1 route. Prices are in US dollars.

Prices of GPT-3.5 Turbo on each route
RouteOn LLMCompareInputper 1M tokensOutputper 1M tokensPrice verified onSource
OpenRouterDefaultNot configured$0.50$1.50openrouter.ai/openai/gpt-3.5-turbo

The cost shown in an LLMCompare report is calculated from these prices as they were at the time of the run.

Cost calculator

Estimate what a batch of calls to GPT-3.5 Turbo costs. The starting numbers are examples. Change them to match your task.

Cost per call
$0.0013
2 credits
Cost of 100 calls
$0.125
200 credits

Calculated from the OpenRouter prices verified on 21 Oct 2026. Credits are the cost plus a 20% service fee, at $0.001 per credit, rounded up for each call, with a minimum of 1 per call. A real run is charged for the usage the provider reports.

Parameters you can set

These are the parameters LLMCompare can set when it calls the model through OpenRouter.

Parameters of GPT-3.5 Turbo
ParameterTypeRange or optionsDefault
temperatureNumber0 to 2in steps of 0.1Provider default
top_pNumber0 to 1in steps of 0.05Provider default
max_tokensInteger1 to 4,096Provider default
seedInteger-2,147,483,648 to 4,294,967,295Provider default
response_formatOne oftextjson_objectProvider default

About GPT-3.5 Turbo

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.

Description as published for this model. LLMCompare has not edited it.

Models to compare with GPT-3.5 Turbo

Text models from the same provider and models at the nearest price. The order is not a ranking.

Models to compare with GPT-3.5 Turbo
Add to comparisonModelContextMax outputInput priceper 1M tokensOutput priceper 1M tokensFeaturesReleasedOn LLMCompare
GPT-4.1 MiniOpenAIopenai/gpt-4.1-mini1.05M32.8k$0.40$1.60JSONToolsCacheVisionNo route yet
GPT-5.1-Codex-MiniOpenAIopenai/gpt-5.1-codex-mini400k128k$0.25$2.00ReasoningJSONToolsCacheVisionNo route yet
GPT-5 MiniOpenAIopenai/gpt-5-mini400k128k$0.25$2.00ReasoningJSONToolsCacheVisionNo route yet
Mistral Large 3 2512Mistralmistralai/mistral-large-2512262k210k$0.50$1.50JSONToolsCacheVisionNo route yet
Morph V3 FastMorphmorph/morph-v3-fast262k131k$0.80$1.20JSONNo route yet
SonarPerplexityperplexity/sonar127k114k$1.00$1.00VisionNo route yet

Questions about GPT-3.5 Turbo

How much does GPT-3.5 Turbo cost?
On the OpenRouter route, GPT-3.5 Turbo costs $0.50 per 1 million input tokens and $1.50 per 1 million output tokens, in US dollars. LLMCompare verified this price on 21 Oct 2026.
What is the context length of GPT-3.5 Turbo?
GPT-3.5 Turbo has a context length of 16,385 tokens and returns up to 4,096 output tokens in one call.
What inputs does GPT-3.5 Turbo accept?
GPT-3.5 Turbo accepts these inputs: Text. GPT-3.5 Turbo returns: Text.
Can I test GPT-3.5 Turbo on my own data?
Not yet. LLMCompare lists the prices and parameters of GPT-3.5 Turbo, but no route to GPT-3.5 Turbo is configured on LLMCompare, so it cannot be selected for an evaluation.