GPT-3.5 Turbo vs GPT 5.2

GPT-3.5 Turbo vs GPT 5.2: GPT-3.5 Turbo is cheaper by 89% on average. GPT-3.5 Turbo from OpenAI (16,385-token context, tool calls) vs. GPT 5.2 from Azure OpenAI (272,000-token context, reasoning, tool calls). Use Agent Command Center to A/B both in shadow mode and pick the winner per workload.

Side-by-side cost

Live workload comparison

Same workload run through both models. The cheaper one is highlighted.

3,000
0272,000
400
0128,000
5,000
01,000,000
OpenAI
$320/mo
Input $0.500/M · Output $1.50/M
Azure OpenAI
$1,651/mo
Input $1.75/M · Output $14.00/M
At this workload, GPT-3.5 Turbo is 81% cheaper than GPT 5.2 — a savings of $1,332/month ($15,980/year).
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
  model: gpt-3-5-turbo
  provider: openai
fallback:
  model: gpt-5-2
  provider: azure-openai
shadow: { sample_rate: 0.05 }   # mirror 5% of traffic to compare quality live
GPT-3.5 Turbo GPT 5.2
Input price $0.500/M $1.75/M
Output price $1.50/M $14.00/M
Context window 16,385 272,000
Max output 4,096 128,000
Function calling
Vision
Audio input
Reasoning
Prompt caching
Structured output
Pricing verified May 12, 2026 May 12, 2026
Cheaper option
~89% cheaper than GPT 5.2
Larger context
272,000 tokens
More capabilities
5 of 6 capability flags advertised

Benchmark comparison

Side-by-side public benchmark scores. Greener bar = winner.

Chatbot Arena ELOgeneral
GPT-3.5 Turbo
GPT 5.2
1,477
AIME 2025math
GPT-3.5 Turbo
GPT 5.2
100.0%
GPQA Diamondreasoning
GPT-3.5 Turbo
GPT 5.2
92.4%
MMLUgeneral
GPT-3.5 Turbo
GPT 5.2
89.6%
ARC-AGIreasoning
GPT-3.5 Turbo
GPT 5.2
86.2%
SWE-bench Verifiedagent
GPT-3.5 Turbo
GPT 5.2
80.0%
MMMU-Promultimodal
GPT-3.5 Turbo
GPT 5.2
79.5%
ARC-AGI-2reasoning
GPT-3.5 Turbo
GPT 5.2
52.9%
FrontierMathmath
GPT-3.5 Turbo
GPT 5.2
40.3%
Humanity's Last Examreasoning
GPT-3.5 Turbo
GPT 5.2
34.5%