Claude Sonnet 5.5 vs DeepSeek V4.1 Flash 1017 API pricing
For a chat message (1K input, 500 output), DeepSeek V4.1 Flash 1017 costs $0.00045 per request and Claude Sonnet 5.5 costs $0.007, so DeepSeek V4.1 Flash 1017 is about 16× cheaper.
On the overall leaderboard Claude Sonnet 5.5 ranks #8 and DeepSeek V4.1 Flash 1017 ranks #15.
Prices are the standard pay-as-you-go prices in OpenRouter's public model list, with input at the cache-miss price. Models OpenRouter does not list use the vendor's official price; those listed in CNY are converted to USD at this round's exchange rate.
Prices and rankings
| USD per million tokens | Claude Sonnet 5.5 | DeepSeek V4.1 Flash 1017 |
|---|---|---|
| Input | $2 | $0.15 |
| Output | $10 | $0.6 |
| Cached input | $0.1 | $0.003 |
| Provider | Anthropic | deepseek |
| Release date | — | — |
| Overall rank | #8 | #15 |
| Coding rank | #12 | — |
| Reasoning rank | #6 | — |
| Knowledge rank | #30 | — |
| Professional work rank | #2 | #14 |
| Verified | 2026-10-20 | 2026-10-20 |
| Price source | Price source | Price source |
Cost per request by usage
Without cache discounts or batch pricing.
| Usage | Claude Sonnet 5.5 | DeepSeek V4.1 Flash 1017 | Difference |
|---|---|---|---|
| Chat message1K in / 500 out | $0.007$7 per 1,000 | $0.00045$0.45 per 1,000 | DeepSeek V4.1 Flash 1017 is 16× cheaper |
| Long document100K in / 2K out | $0.22$220 per 1,000 | $0.0162$16.2 per 1,000 | DeepSeek V4.1 Flash 1017 is 14× cheaper |
| Agent session500K in / 50K out | $1.5$1,500 per 1,000 | $0.1$105 per 1,000 | DeepSeek V4.1 Flash 1017 is 14× cheaper |
More price comparisons
Claude Sonnet 5.5 vs other models
- Claude Sonnet 5.5 vs Claude Opus 5.5
- Claude Sonnet 5.5 vs GPT-6 Astra
- Claude Sonnet 5.5 vs Gemini 4 Argon
- Claude Sonnet 5.5 vs Claude Fable 5.1
- Claude Sonnet 5.5 vs Claude Fable 5
- Claude Sonnet 5.5 vs GPT-6.1 Sol
- Claude Sonnet 5.5 vs Claude Opus 5
- Claude Sonnet 5.5 vs Muse Spark 1.3
- Claude Sonnet 5.5 vs GPT-6 Sol
- Claude Sonnet 5.5 vs GPT-5.6 Sol
- Claude Sonnet 5.5 vs Grok 4.7
- Claude Sonnet 5.5 vs MiMo V 2.6 Pro
- Claude Sonnet 5.5 vs Qwen3.8 Max
DeepSeek V4.1 Flash 1017 vs other models
- DeepSeek V4.1 Flash 1017 vs Claude Opus 5.5
- DeepSeek V4.1 Flash 1017 vs GPT-6 Astra
- DeepSeek V4.1 Flash 1017 vs Gemini 4 Argon
- DeepSeek V4.1 Flash 1017 vs Claude Fable 5.1
- DeepSeek V4.1 Flash 1017 vs Claude Fable 5
- DeepSeek V4.1 Flash 1017 vs GPT-6.1 Sol
- DeepSeek V4.1 Flash 1017 vs Claude Opus 5
- DeepSeek V4.1 Flash 1017 vs Muse Spark 1.3
- DeepSeek V4.1 Flash 1017 vs GPT-6 Sol
- DeepSeek V4.1 Flash 1017 vs GPT-5.6 Sol
- DeepSeek V4.1 Flash 1017 vs Grok 4.7
- DeepSeek V4.1 Flash 1017 vs MiMo V 2.6 Pro
- DeepSeek V4.1 Flash 1017 vs Qwen3.8 Max