token.app › Compare › Claude Sonnet 5 vs DeepSeek V4 Pro 0423
Claude Sonnet 5 vs DeepSeek V4 Pro 0423
Claude Sonnet 5 and DeepSeek V4 Pro 0423 split the 4 shared benchmarks evenly. DeepSeek V4 Pro 0423 is 3.3× cheaper per token on a blended 3:1 basis. DeepSeek V4 Pro 0423 accepts the larger context window (1.0M).
Head to head
Blended price uses a 3:1 input:output mix
| Claude Sonnet 5 | DeepSeek V4 Pro 0423 | |
|---|---|---|
| Provider | Anthropic | DeepSeek |
| Input $/1M | $2.00 | $0.955 |
| Output $/1M | $10.00 | $1.91 |
| Blended $/1M | $4.00 | $1.19 |
| Context window | 1M | 1.0M |
| Max output | 128K | 384K |
| Released | Jun 2026 | Apr 2026 |
| Licence | Proprietary | Open weights |
| GPQA Diamond | 90.5% | 90.9% |
| FrontierMath T1–3 | 65.6% | 45.3% |
| FrontierMath T4 | 29.3% | 2.4% |
| OTIS Mock AIME | 94.7% | 96.7% |
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose Claude Sonnet 5 if…
- Higher FrontierMath T1–3 (65.6% vs 45.3%)
- Higher FrontierMath T4 (29.3% vs 2.4%)
- Newer model (released Jun 2026)
Choose DeepSeek V4 Pro 0423 if…
- Costs less per token — $1.19 vs $4.00 blended
- Higher GPQA Diamond (90.9% vs 90.5%)
- Higher OTIS Mock AIME (96.7% vs 94.7%)
- Larger context window (1.0M)
- Open weights — self-hostable
FAQ
Which is better, Claude Sonnet 5 or DeepSeek V4 Pro 0423?
Across the 4 benchmarks both models have independently-run scores for, Claude Sonnet 5 leads on 2 and DeepSeek V4 Pro 0423 leads on 2. Benchmarks are one input — price and context window are on this page too.
Is Claude Sonnet 5 cheaper than DeepSeek V4 Pro 0423?
DeepSeek V4 Pro 0423 is cheaper: $1.19 versus $4.00 per million tokens blended at 3:1 input:output. Input alone: $2.00 vs $0.955. Output alone: $10.00 vs $1.91.
What context windows do Claude Sonnet 5 and DeepSeek V4 Pro 0423 have?
Claude Sonnet 5: 1,000,000 tokens. DeepSeek V4 Pro 0423: 1,048,576 tokens.
Who makes Claude Sonnet 5 and DeepSeek V4 Pro 0423?
Claude Sonnet 5 is made by Anthropic. DeepSeek V4 Pro 0423 is made by DeepSeek.
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