Side-by-side comparison of pricing, context window, benchmarks, capabilities, and license. Data sourced from the Interestana AI Index, kept current as developers update their models.
Model A — Anthropic
Claude 4.5 Haiku is Anthropic’s fastest and cheapest production model, targeting real-time use cases without sacrificing instruction-following quality.
Model B — DeepSeek
DeepSeek V3.5 is a mixture-of-experts model with 685B total parameters and 37B activated per token. Notable for delivering frontier performance at a fraction of the training cost of competing models.
| Property | Claude 4.5 Haiku | DeepSeek V3.5 |
|---|---|---|
| Released | Mar 4, 2026 | Mar 24, 2026 |
| Developer | Anthropic | DeepSeek |
| Type | multimodal | llm |
| License | proprietary | open-weight |
| Context window | 200,000 | 128,000 |
| Parameters | — | 685B MoE (37B active) |
| Input $/M tokens | $0.80 | $0.27 |
| Output $/M tokens | $4.00 | $1.10 |
Bold green values indicate the winner on that dimension where comparison is meaningful (lower price wins; bigger context wins; more open license wins; newer date wins).
Programmatic access available at /api/ai/compare?a=claude-4-haiku&b=deepseek-v3-5. CORS is open. Citation guidance: /about/editorial-process.