Best Alternatives to OpenAI o1 (2026)
OpenAI o1 by OpenAI costs $15.00/M input tokens (~$17.25 per medium project). Below are 9 alternatives — 6 cheaper and 3 with more capability.
Top 6 Cheaper Alternatives
These models cost less than OpenAI o1 and deliver comparable or better value.
OpenAI o3
Next generation reasoning model. Improved coding and math over o1.
View Full Pricing →OpenAI o3-mini
Affordable reasoning model for coding tasks. Best price-performance for algorithm-heavy work.
View Full Pricing →OpenAI o1-mini
Cost-effective reasoning model. Good for coding tasks that require logical reasoning.
View Full Pricing →All Cheaper Alternatives (6)
Sorted by cost savings. Every model listed costs less than OpenAI o1.
| Rank | Model | Provider | Input Price | Cost/Project | Savings | Why It Works |
|---|---|---|---|---|---|---|
| #1 | OpenAI o3 | OpenAI | $10.00/M | $11.50 | -33% | 33% cheaper ($10.00 vs $15.00), improved coding and math |
| #2 | OpenAI o3-mini | OpenAI | $1.10/M | $1.27 | -93% | 93% cheaper ($1.10 vs $15.00), affordable reasoning |
| #3 | OpenAI o1-mini | OpenAI | $1.10/M | $1.27 | -93% | 93% cheaper ($1.10 vs $15.00), good for coding logic |
| #4 | DeepSeek Reasoner (R1) | DeepSeek | $0.550/M | $0.63 | -96% | 96% cheaper ($0.55 vs $15.00), comparable to o1 at fraction of cost |
| #5 | Claude Opus 4 | Anthropic | $15.00/M | $23.29 | --35% | Same price ($15.00) but better for coding specifically |
| #6 | Grok 4 | xAI | $5.00/M | $6.75 | -61% | 67% cheaper ($5.00 vs $15.00) with enhanced reasoning |
More Capable Alternatives (3)
These models cost more but deliver significantly better capability for specific use cases.
| Rank | Model | Provider | Input Price | Cost/Project | Premium | Why Upgrade |
|---|---|---|---|---|---|---|
| #1 | OpenAI o1 Pro | OpenAI | $20.00/M | $23.00 | +33% | Extended compute allocation, premium reasoning accuracy |
| #2 | OpenAI o3 Pro | OpenAI | $20.00/M | $23.00 | +33% | Next-gen reasoning with extended chain of thought |
| #3 | Claude Opus 4 | Anthropic | $15.00/M | $23.29 | +35% | Better coding-specific reasoning, same price |
Should You Switch from OpenAI o1?
If you're using OpenAI o1 for complex math, advanced coding, scientific reasoning, there are likely better-value options available. The cheapest alternative saves up to 96% on your API costs while maintaining comparable quality.
For tasks requiring more reasoning depth, consider the models in the "More Capable" section above. The premium you pay buys significantly improved accuracy and problem-solving capability.
Frequently Asked Questions
Is DeepSeek Reasoner really as good as OpenAI o1?
DeepSeek Reasoner (R1) provides comparable reasoning capability to o1 at $0.55/M vs $15.00/M — about 1/27th the cost. For most reasoning tasks, it's a viable replacement.
What's the cheapest reasoning model?
o3-mini and o1-mini at $1.10/M, followed by DeepSeek Reasoner at $0.55/M.
Should I use o1 or o3?
o3 is newer and cheaper ($10.00 vs $15.00) with improved coding and math. Unless you have a specific reason to use o1, prefer o3.