DeepSeek Reasoner (R1) vs O1 Preview
Performance benchmarks + pricing comparison — updated April 2026
DeepSeek Reasoner (R1)
DeepSeekDeepSeek's reasoning model. Comparable to OpenAI's o1 but at much lower cost.
| Input | $0.550/M |
| Output | $2.19/M |
| Context | 128K tokens |
| Best For | Complex reasoning, math, advanced coding |
| Benchmark | 72/100 |
O1 Preview
OpenAIOpenAI's first reasoning model. Strong at complex problem solving but expensive.
| Input | $15.00/M |
| Output | $60.00/M |
| Context | 128K tokens |
| Best For | Complex math, science, algorithm design |
Cost Comparison by Scenario
Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.
| Scenario | DeepSeek Reasoner (R1) | O1 Preview | Savings |
|---|---|---|---|
| Small Script (1K lines) | $0.08 | $2.32 | DeepSeek Reasoner (R1) saves $2.24 (96%) |
| Medium Feature (10K lines) | $0.63 | $17.25 | DeepSeek Reasoner (R1) saves $16.62 (96%) |
| Large Project (50K lines) | $3.15 | $86.25 | DeepSeek Reasoner (R1) saves $83.10 (96%) |
| Code Review (5K lines) | $0.15 | $4.13 | DeepSeek Reasoner (R1) saves $3.97 (96%) |
Verdict
DeepSeek Reasoner (R1) wins on both price and performance — $0.550/M input with a benchmark score of N/A/100.
For most developers, this is the clear choice between these two models.
Compare with Other Models
Claude Sonnet 4
AnthropicAnthropic's balanced model for coding and general tasks. Best price-performance ratio in the Claude family.
Claude Opus 4
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Claude 3.5 Sonnet
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Claude 3.5 Haiku
AnthropicFast, cost-effective model for high-volume tasks. Great for code review and simple queries.
Claude 3 Opus
AnthropicFirst generation Opus. Highest reasoning capability in the Claude 3 family.
Claude 3 Sonnet
AnthropicFirst generation Sonnet. Balanced performance for general tasks.