# OpenAI GPT-3.5 Turbo

As of October 21, 2026, OpenAI GPT-3.5 Turbo ranks #206 of 213 models overall with 5.5 on the Artificial Analysis Intelligence Index. Its strongest category is knowledge, where it ranks #143 of 147. OpenAI GPT-3.5 Turbo costs $0.50 per million input tokens and $1.50 per million output tokens. It was released on May 28, 2023.

Page: https://llmbenchmark.ai/models/gpt-3-5-turbo
Data from October 21, 2026. Every figure below names the board it was read from and the day.

- Maker: OpenAI
- Released: May 28, 2023
- Price per million input tokens: $0.50
- Price per million output tokens: $1.50
- Context window: 16K tokens
- Overall rank: 206 of 213, by the Artificial Analysis Intelligence Index
- Artificial Analysis Intelligence Index: 5.5

Benchmark results (12 of 190):

- GPQA Diamond: 30.6% (source: GPQA (Vals AI), read October 21, 2026)
- AA Intelligence Index: 5.5 (source: Artificial Analysis (via OpenRouter), read October 21, 2026)
- AA Coding Index: 10.7 (source: Artificial Analysis (via OpenRouter), read October 21, 2026)
- LegalBench (Vals AI): 64.4% (source: Vals AI boards, read October 21, 2026)
- MedQA (Vals AI): 58.5% (source: Vals AI boards, read October 21, 2026)
- GPQA Diamond (Artificial Analysis run): 29.7% (source: Artificial Analysis, read October 21, 2026)
- MMLU Pro (Artificial Analysis run): 46.2% (source: Artificial Analysis, read October 21, 2026)
- GSM8K: 57.8% (source: Epoch AI benchmarking hub, read October 21, 2026)
- MMLU: 68.5% (source: Epoch AI benchmarking hub, read October 21, 2026)
- DTBench: 48.5% (source: Epoch AI benchmarking hub, read October 21, 2026)
- LMCA: 9.7% (source: Epoch AI benchmarking hub, read October 21, 2026)
- BIG-Bench Hard: 61.6% (source: Epoch AI benchmarking hub, read October 21, 2026)