o3 Pro alternatives

Best o3 Pro alternatives

10 models that can stand in for o3 Pro, ranked by benchmark score, with what each one does better.

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Current Model

o3 Pro

Input / 1M
$20
Output / 1M
$80
Context
200K
Intelligence
21.9

Quick picks

The best alternative depends on what you need

Why people switch away from o3 Pro, and the model that fits each reason best.

Ranked

Top o3 Pro alternatives

Each model is scored against o3 Pro. Green means better, red means worse.

o3 Pro as the baseline, then the top alternatives scored against it
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o3 Pro

OpenAI

Input / 1M$20Output / 1M$80Context200KIntelligence21.9Reference model
1openai logo
GPT-5.1

OpenAI

Input / 1M$1.25-94%Output / 1M$10-87%Context400K+100%Intelligence24.7+13%Compare
Why switch:8x cheaper outputHigher intelligence scoreLarger 400K contextNewer release
Input / 1M$0.75-96%Output / 1M$4.50-94%Context400K+100%Intelligence24.1+10%Compare
Why switch:17.8x cheaper outputHigher intelligence scoreLarger 400K contextNewer release
Input / 1M$1.25-94%Output / 1M$10-87%Context400K+100%Intelligence23.7+8%Compare
Why switch:8x cheaper outputHigher intelligence scoreLarger 400K contextNewer release
4openai logo
GPT-5

OpenAI

Input / 1M$1.25-94%Output / 1M$10-87%Context400K+100%Intelligence23+5%Compare
Why switch:8x cheaper outputHigher intelligence scoreLarger 400K contextNewer release
5anthropic logo
Input / 1M$15-25%Output / 1M$75-6%Context200KIntelligence22.8+4%Compare
Why switch:1.1x cheaper outputHigher intelligence scoreNewer release
Input / 1M$3-85%Output / 1M$15-81%Context1M+400%Intelligence20.7-5%Compare
Why switch:5.3x cheaper outputLarger 1M contextNewer release
7openai logo
Input / 1M$0.25-99%Output / 1M$2-97%Context400K+100%Intelligence20.6-6%Compare
Why switch:40.0x cheaper outputLarger 400K contextNewer release
8openai logo
o3

OpenAI

Input / 1M$2-90%Output / 1M$8-90%Context200KIntelligence20.2-8%Compare
Why switch:10.0x cheaper output
9anthropic logo
Input / 1M$3-85%Output / 1M$15-81%Context200KIntelligence18.9-14%Compare
Why switch:5.3x cheaper output
10openai logo
o1

OpenAI

Input / 1M$15-25%Output / 1M$60-25%Context200KIntelligence15.2-31%Compare
Why switch:1.3x cheaper output

FAQ

Frequently asked questions

What is the best alternative to o3 Pro?

GPT-5.1 from OpenAI ranks first, based on independent benchmark scores. It costs $10 per 1M output tokens, compared with $80 for o3 Pro.

Is there a cheaper alternative to o3 Pro?

Yes. GPT-5 Mini charges $2 per 1M output tokens, versus $80 for o3 Pro.

Can I try o3 Pro and its alternatives at the same time?

Yes. Shortcut Chat sends one prompt to several models at once, so you can compare o3 Pro with any of these alternatives on your own tasks.

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Not sure which to pick? Try them all.

Send one prompt to o3 Pro and its alternatives at the same time, and keep the answer you like best.