GPT-3.5 Turbo

Compact GPT model for low-latency assistance and high-volume workloads

Context: 16K
Released: 3y ago
Input / 1M tokens: $0.50
Output / 1M tokens: $1.50

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Other sourced evaluations appear below; missing scores are not zero.

Not evaluated in DeepSWE 1.1 as of 2026-09-22. Results are only shown for exact model versions in the official dataset. Official leaderboard.

No benchmark results have been matched to this model yet.

Specifications

Developer: OpenAI
Model family: GPT
Type: Language model
Predecessor: —
Successor: —
Released: March 1, 2023
Model ID: openai/gpt-3.5-turbo
Openness: Closed
License: —
Input modalities: text
Output modalities: text
Modality: text->text
Tokenizer: GPT
Max output tokens: 4K
Knowledge cutoff: 2021-09-01
Hugging Face: —
Source freshness: Metadata synced Oct 8, 2026, 10:17 PM UTC

Additional source evidence

Source model: openai/gpt-3.5-turbo
Source family: gpt
Last updated: 2023-11-06
Knowledge cutoff: 2021-09-01
Model context: 16K
Model output limit: 4K
Open weights: No
File attachments: No
Reasoning: No
Tool calling: No
Structured output: No
Temperature control: Yes

Published benchmarks

Benchmark	Score	Evaluation details	Evidence
Artificial Analysis Coding Index	10.7 · index	2026-03-11	Source

Complete source record (JSON)

{
  "id": "openai/gpt-3.5-turbo",
  "name": "GPT-3.5-turbo",
  "description": "Compact GPT model for low-latency assistance and high-volume workloads",
  "family": "gpt",
  "last_updated": "2023-11-06",
  "knowledge": "2021-09-01",
  "attachment": false,
  "reasoning": false,
  "tool_call": false,
  "structured_output": false,
  "temperature": true,
  "modalities": {
    "input": [
      "text"
    ],
    "output": [
      "text"
    ]
  },
  "limit": {
    "context": 16385,
    "output": 4096
  },
  "benchmarks": [
    {
      "name": "Artificial Analysis Coding Index",
      "score": 10.7,
      "source": "https://openrouter.ai/openai/gpt-3.5-turbo/benchmarks",
      "metric": "index",
      "date": "2026-03-11"
    }
  ],
  "release_date": "2023-03-01",
  "open_weights": false
}

Infrastructure

Provider availability

All providers

Provider	Endpoint	Context	Input /M tokens	Output /M tokens	Cached input /M tokens	Cache write /M tokens	Uptime 1d	Data handling
OpenAI	openai	16K	$0.50	$1.50	—	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15
OpenAI	openaiBatch pricing	16K	$0.50	$1.50	—	—	100.00%	ZDR: No Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15

Provider data:OpenRouter

Text provenance

EU · product-scoped

OpenAI textGrain watermarking

In the EU, ChatGPT-generated text uses textGrain. OpenAI says API customers can opt in globally for select models, so watermarking depends on the product surface and configuration.

Official explanation