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OpenAI · Balanced

GPT-3.5 Turbo

Added Jan 1, 2024

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Use in the app

Older model. Brought ChatGPT to the mainstream, seen as dated nowadays. 90% cheaper than GPT-4-Turbo, recommended for very simple tasks.

Input
Text
Output
Text
Discovery tier
Balanced

Pricing

USD per 1M tokens
Input
$0.50
Output
$1.50

Reference prices as published by the model provider. API example

Specifications

Context window
16.4K
Max output
4.1K

Side by side

GPT-3.5 Turbo compared

Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.

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GPT-3.5 TurboOpenAIThis modelCohere: Command R+cohereRemove
ProviderOpenAIcohere
Discovery tierBalancedBalanced
AddedJan 1, 2024Jan 1, 2024
Limits
Context window16.39K128KBest
Max output4.1K4.1K
Average output—146 tokens
Pricing, USD per 1M tokens
Input$0.50Best$2.86
Output$1.50Best$14.25
Benchmark indexes
Intelligence Index5.5Best5.3
Coding Index10.7—
Capabilities
Reasoning effort——

Public evaluations

Benchmarks

Independent evaluation results, with how each score ranks among the models in the Noumen catalog.

  • GPT-3.5 Turbo
  • Cohere: Command R+

Intelligence Index

  • GPT-3.5 Turbo5.5
  • Cohere: Command R+5.3

GPT-3.5 Turbo: Better than 1% of 326 scored models

3.8Catalog models by score55.1

Indexes

  • Coding Index

    Composite of the coding evaluations

    • GPT-3.5 Turbo: 10.7
    • Cohere: Command R+: —

Reasoning and knowledge

  • Humanity’s Last Exam

    Expert-level questions across academic fields

    • GPT-3.5 Turbo: —
    • Cohere: Command R+: 4.6%

  • GPQA Diamond

    Graduate-level science questions

    • GPT-3.5 Turbo: 29.7%
    • Cohere: Command R+: 32.3%Top

  • MMLU-Pro

    Multi-subject knowledge and reasoning

    • GPT-3.5 Turbo: 46.2%Top
    • Cohere: Command R+: 43.2%

Coding

  • LiveCodeBench

    Recent competitive programming problems

    • GPT-3.5 Turbo: —
    • Cohere: Command R+: 12.2%

Math

  • AIME

    Competition mathematics

    • GPT-3.5 Turbo: —
    • Cohere: Command R+: 0.7%

  • MATH-500

    Competition math problems

    • GPT-3.5 Turbo: 44.1%Top
    • Cohere: Command R+: 27.9%

Scores from Artificial Analysis, updated Oct 26, 2026.

Developers

Use it through the API

Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.

Read the quickstart
curl https://www.noumen.xyz/api/v1/chat/completions \
  -H "Authorization: Bearer $NOUMEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-3.5-turbo",
    "messages": [{ "role": "user", "content": "Explain this stack trace." }]
  }'
import os
from openai import OpenAI

client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
    model="openai/gpt-3.5-turbo",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

OpenAI

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