Claude 3.5 Sonnet vs DeepSeek Reasoner
| Claude 3.5 Sonnet | DeepSeek Reasoner | |
|---|---|---|
| Provider | Anthropic | DeepSeek |
| Context Window | 200,000 | 128,000 |
| Release Date | 2024-06-20 | 2025-03-24 |
| Input Price | $3.00/ 1M tokens | $0.55/ 1M tokens |
| Output Price | $15.00/ 1M tokens | $2.19/ 1M tokens |
| Best for | coding · writing · chatbot · analysis | mathematics · logic · coding · complex QA |
Capabilities
| Claude 3.5 Sonnet | DeepSeek Reasoner | |
|---|---|---|
| Vision | ✓ | ✗ |
| Reasoning | ✓ | ✓ |
| Coding | ✓ | ✓ |
| Audio | ✗ | ✗ |
| Tools | ✓ | ✓ |
| Long Context | ✓ | ✗ |
Ranking Comparison
| Claude 3.5 Sonnet | DeepSeek Reasoner | |
|---|---|---|
| Overall | 78.4 | 17.5 |
| Benchmark | 80 | 0 |
| Capability | 85.7 | 42.9 |
| Price Efficiency | 100 | 100 |
| Context | 100 | 64 |
Overall = Benchmark 50% + Capability 20% + Price Efficiency 20% + Context 10%.
Benchmark Comparison
| Claude 3.5 Sonnet | DeepSeek Reasoner | |
|---|---|---|
| Coding | — | — |
| Reasoning | — | — |
| Math | — | — |
| Vision | — | — |
Price History
Claude 3.5 Sonnet
| Date | Input | Output |
|---|---|---|
| 2026-08-11 | $3.00 | $15.00 |
/ 1M tokens
DeepSeek Reasoner
| Date | Input | Output |
|---|---|---|
| 2026-08-11 | $0.55 | $2.19 |
/ 1M tokens
Claude 3.5 Sonnet
Anthropic's flagship model known for strong coding and nuanced writing.
DeepSeek Reasoner
DeepSeek's reasoning model (R1 series) with strong math and logic.
Claude 3.5 Sonnet
Data Reliability
Benchmark · VerifiedOfficial · Verified
Data confidence: 90%
DeepSeek Reasoner
Data Reliability
Benchmark · ExperimentalOfficial · Experimental
Data confidence: 50%
Why compare these models?
These models are compared because:
- • Same capability category
Choose Claude 3.5 Sonnet if:
- • Higher overall score
Choose DeepSeek Reasoner if:
- • Lower input price
Frequently Asked Questions
Which model is better: Claude 3.5 Sonnet or DeepSeek Reasoner?
Based on overall scores, Claude 3.5 Sonnet ranks higher (78.4 vs 17.5). See the comparison table for a full breakdown.
Which model is cheaper: Claude 3.5 Sonnet or DeepSeek Reasoner?
DeepSeek Reasoner is cheaper: $0.55 vs $3 per 1M input tokens.
What are the capability differences between Claude 3.5 Sonnet and DeepSeek Reasoner?
Claude 3.5 Sonnet: Vision, Long Context