Claude 3 Sonnet vs O1 Preview
Performance benchmarks + pricing comparison — updated April 2026
Claude 3 Sonnet
AnthropicFirst generation Sonnet. Balanced performance for general tasks.
| Input | $3.00/M |
| Output | $15.00/M |
| Context | 200K tokens |
| Best For | General-purpose coding and reasoning |
| Benchmark | 65/100 |
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 | Claude 3 Sonnet | O1 Preview | Savings |
|---|---|---|---|
| Small Script (1K lines) | $0.55 | $2.32 | Claude 3 Sonnet saves $1.77 (76%) |
| Medium Feature (10K lines) | $4.05 | $17.25 | Claude 3 Sonnet saves $13.20 (77%) |
| Large Project (50K lines) | $20.25 | $86.25 | Claude 3 Sonnet saves $66.00 (77%) |
| Code Review (5K lines) | $0.90 | $4.13 | Claude 3 Sonnet saves $3.23 (78%) |
Verdict
Claude 3 Sonnet wins on both price and performance — $3.00/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
AnthropicAnthropic's most powerful model. Best for complex reasoning and challenging coding tasks.
Claude 3.5 Sonnet
AnthropicPrevious generation Sonnet. Still excellent for coding tasks at the same price point.
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 Haiku
AnthropicCheapest Claude model. Fast responses for simple tasks and basic coding.