GPT-4 Turbo vs o1
Pricing, context window, and benchmark comparison · Last updated April 2026
GPT-4 Turbo is cheaper than o1 at $10.00/1M/1M vs $15.00/1M/1M input tokens — a 1.5x cost difference. o1 scores higher on quality benchmarks (ELO 1350). Choose GPT-4 Turbo for cost-sensitive workloads; choose o1 for maximum quality.
Which is cheaper: GPT-4 Turbo or o1?
GPT-4 Turbo is the cheaper option at $10.00/1M per 1M input tokens, compared to $15.00/1M for o1. That is a 1.5x cost difference on input tokens. Output pricing follows a similar pattern: GPT-4 Turbo charges $30.00/1M/1M vs $60.00/1M/1M for o1.
Which has better quality: GPT-4 Turbo or o1?
Based on LMSYS Chatbot Arena rankings, o1 achieves a higher ELO score (1350 vs 1260), suggesting stronger performance on open-ended tasks. GPT-4 Turbo excels at strong general reasoning. o1 is known for best-in-class reasoning on complex problems.
Which should you choose: GPT-4 Turbo or o1?
- → Strong general reasoning
- → Good at following complex multi-step instructions
- → Reliable tool/function calling
- → Best-in-class reasoning on complex problems
- → Exceptional at math, science, and formal logic
- → Large 200K context window
Frequently Asked Questions
Which is cheaper: GPT-4 Turbo or o1?
GPT-4 Turbo is cheaper at $10.00/1M per 1M input tokens, making it 1.5x more affordable.
Which has better quality: GPT-4 Turbo or o1?
o1 scores higher on the LMSYS Chatbot Arena with an ELO of 1350, suggesting better overall quality for most tasks.
Which has a larger context window: GPT-4 Turbo or o1?
o1 has a larger context window at 200K tokens.
Should I choose GPT-4 Turbo or o1?
Choose GPT-4 Turbo if cost is the priority. Choose o1 if benchmark quality is most important. Consider your specific use case: GPT-4 Turbo is best for coding and function-calling, while o1 excels at reasoning and math.
Is GPT-4 Turbo or o1 open source?
GPT-4 Turbo is proprietary. o1 is proprietary.