Claude Haiku 5.5 vs DeepSeek V4.1 Flash
Short answer
Claude Haiku 5.5 costs 24% less than DeepSeek V4.1 Flash for a typical 3:1 input-to-output token mix ($0.20 vs $0.26 per 1M tokens). DeepSeek V4.1 Flash scores higher on ARC-AGI-2 (78.1% vs 61.3%).
Prices updated Oct 23, 2026 (APIpulse, CC BY 4.0) · Benchmarks: ARC Prize, Vals.ai · all models
| Claude Haiku 5.5cheaper | DeepSeek V4.1 Flash | |
|---|---|---|
| Provider | Anthropic | DeepSeek |
| Input / 1M tokens | $0.10 | $0.15 |
| Output / 1M tokens | $0.50 | $0.60 |
| Blended (3:1) / 1M | $0.20 | $0.26 |
| Context window | 1M | 1M |
| ARC-AGI-2 | 61.3% (XHigh) | 78.1% (Max) |
| SWE-bench Verified | — | — |
API cost calculator
Enter your monthly usage in millions of tokens (1M tokens ≈ 750,000 words).
Standard rates; batch processing and prompt caching can lower the bill.
Frequently asked questions
Which is cheaper, Claude Haiku 5.5 or DeepSeek V4.1 Flash?
Claude Haiku 5.5 costs 24% less than DeepSeek V4.1 Flash for a typical 3:1 input-to-output token mix ($0.20 vs $0.26 per 1M tokens).
How much do Claude Haiku 5.5 and DeepSeek V4.1 Flash cost per month?
For 10M input and 2M output tokens a month: Claude Haiku 5.5 costs $2 and DeepSeek V4.1 Flash costs $2.70.
More: Claude Haiku 5.5 pricing · DeepSeek V4.1 Flash pricing · all API prices
Benchmarks updated Oct 25, 2026.