Claude Sonnet 4.6 vs o3
| Claude Sonnet 4.6 | o3 | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Context Window | 200,000 | 200,000 |
| Release Date | — | 2025-04-16 |
| Input Price | $3.00/ 1M tokens | $2.00/ 1M tokens |
| Output Price | $15.00/ 1M tokens | $8.00/ 1M tokens |
| Best for | reasoning · coding · analysis · tool use | mathematics · coding · scientific reasoning · complex planning |
Capabilities
| Claude Sonnet 4.6 | o3 | |
|---|---|---|
| Vision | ✓ | ✗ |
| Reasoning | ✓ | ✓ |
| Coding | ✓ | ✓ |
| Audio | ✗ | ✗ |
| Tools | ✓ | ✓ |
| Long Context | ✓ | ✓ |
Ranking Comparison
| Claude Sonnet 4.6 | o3 | |
|---|---|---|
| Overall | 47.1 | 87.9 |
| Benchmark | 0 | 93 |
| Capability | 85.7 | 57.1 |
| Price Efficiency | 100 | 100 |
| Context | 100 | 100 |
Overall = Benchmark 50% + Capability 20% + Price Efficiency 20% + Context 10%.
Benchmark Comparison
| Claude Sonnet 4.6 | o3 | |
|---|---|---|
| Coding | — | — |
| Reasoning | — | — |
| Math | — | — |
| Vision | — | — |
Price History
Claude Sonnet 4.6
| Date | Input | Output |
|---|---|---|
| 2026-08-05 | $3.00 | $15.00 |
/ 1M tokens
o3
| Date | Input | Output |
|---|---|---|
| 2026-08-05 | $2.00 | $8.00 |
/ 1M tokens
Claude Sonnet 4.6
Anthropic's balanced frontier model with strong reasoning and cost efficiency.
o3
OpenAI reasoning model that thinks before answering, strongest on STEM and logic.
Frequently Asked Questions
Which model is better: Claude Sonnet 4.6 or o3?
Based on overall scores, o3 ranks higher (87.9 vs 47.1). See the comparison table for a full breakdown.
Which model is cheaper: Claude Sonnet 4.6 or o3?
o3 is cheaper: $2 vs $3 per 1M input tokens.
What are the capability differences between Claude Sonnet 4.6 and o3?
Claude Sonnet 4.6: Vision