GPT-4.1 vs OpenAI o1 — Which Is Better in 2026?
GPT-4.1 vs OpenAI o1: independent head-to-head scored on Performance, Value, Reliability, and Ease of Use. See scores, pros, cons, and our verdict.
OpenAI
GPT-4.1
OpenAI's best coding model
OpenAI
OpenAI o1
Best AI for hard reasoning and math
8.9
Overall Score
WINNER8.0
Overall Score
Our Verdict
GPT-4.1 scores higher overall (8.9/10 vs 8.0/10), winning on Value and Reliability. OpenAI's latest flagship. Best coding performance in the GPT family.
Pricing — GPT-4.1
API: $2/M input · $8/M output · Plus $20/mo
Pricing — OpenAI o1
API: $15/M input · $60/M output · Pro plan
GPT-4.1
Pros
- ✓Best coding performance in the GPT family
- ✓Strong instruction following for agentic use
- ✓Full OpenAI tool ecosystem
Cons
- ✗More expensive than Claude Sonnet at API level
- ✗Less creative than Claude for writing tasks
- ✗Context window smaller than Gemini Pro
Best For
Software development, agentic workflows, enterprise OpenAI integrations
OpenAI o1
Pros
- ✓Best multi-step mathematical reasoning available
- ✓Excels at PhD-level problem solving
- ✓Think-before-answer approach reduces errors
Cons
- ✗Much slower than standard GPT models
- ✗Very expensive for routine use
- ✗Not suitable for conversational or creative tasks
Best For
Complex math, scientific reasoning, hard coding challenges, research problems
Choose GPT-4.1 if…
- →Value is your top priority — GPT-4.1 leads by 2.0 points
- →Software development
- →You also value Reliability — GPT-4.1 wins that dimension too
Choose OpenAI o1 if…
- →Performance is your top priority — OpenAI o1 leads by 0.2 points
- →Complex math
- →OpenAI support, documentation, and community suit your team
Frequently Asked Questions
Is GPT-4.1 better than OpenAI o1?
GPT-4.1 scores 8.9/10 overall vs 8.0/10 for OpenAI o1, with an edge on Value and Reliability and Ease of Use. That said, "OpenAI o1" may be the better pick if performance is your priority. The right choice depends on your use case.
What is the pricing difference between GPT-4.1 and OpenAI o1?
GPT-4.1: API: $2/M input · $8/M output · Plus $20/mo. OpenAI o1: API: $15/M input · $60/M output · Pro plan. Compare usage volumes and features needed to determine total cost of ownership for your team.
Which is better for software development?
GPT-4.1 is generally stronger here, scoring 8.9/10 overall. OpenAI's latest flagship. Best coding performance in the GPT family. For more niche requirements like performance, OpenAI o1 may be worth evaluating.
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