Claude Haiku 4.5 vs DeepSeek R1 Zero
Claude Haiku 4.5 (2025) and DeepSeek R1 Zero (2025) are frontier reasoning models from Anthropic and DeepSeek. Claude Haiku 4.5 ships a 200k-token context window, while DeepSeek R1 Zero ships a 128k-token context window. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads. It focuses on practical selection signals rather than broad model-family marketing.
Claude Haiku 4.5 is safer overall; choose DeepSeek R1 Zero when reasoning depth matters.
Decision scorecard
Local evidence first| Signal | Claude Haiku 4.5 | DeepSeek R1 Zero |
|---|---|---|
| Best for | multimodal apps, tool-calling agents, and provider-routed production | reasoning-heavy apps |
| Decision fit | Coding, RAG, and Agents | Long context |
| Context window | 200k | 128k |
| Cheapest output | $4/1M tokens | - |
| Provider routes | 9 tracked | 0 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Claude Haiku 4.5 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Claude Haiku 4.5 has broader tracked provider coverage for fallback and route flexibility.
- Claude Haiku 4.5 uniquely exposes Vision, Multimodal, and JSON / Tool use in local model data.
- Local decision data tags Claude Haiku 4.5 for Coding, RAG, and Agents.
- DeepSeek R1 Zero uniquely exposes Reasoning in local model data.
- Local decision data tags DeepSeek R1 Zero for Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Claude Haiku 4.5
$1,640
Cheapest tracked route/tier: AWS Bedrock
DeepSeek R1 Zero
Unavailable
No complete token price in local provider data
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Claude Haiku 4.5 and DeepSeek R1 Zero; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Vision, Multimodal, and JSON / Tool use before moving production traffic.
- DeepSeek R1 Zero adds Reasoning in local capability data.
- No overlapping tracked provider route is sourced for DeepSeek R1 Zero and Claude Haiku 4.5; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Reasoning before moving production traffic.
- Claude Haiku 4.5 adds Vision, Multimodal, and JSON / Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-10-01 | 2025-01-20 |
| Context window | 200k | 128k |
| Parameters | — | 671B, 37B Active |
| Architecture | Decoder Only | Mixture of Experts |
| License | Proprietary | MITOSI-approved |
| Openness | Proprietary | Open source |
| Weights | Not released | Available |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: permitted |
| Knowledge cutoff | 2025-02 | - |
Pricing and availability
| Pricing attribute | Claude Haiku 4.5 | DeepSeek R1 Zero |
|---|---|---|
| Input price | $0.80/1M tokens | - |
| Output price | $4/1M tokens | - |
| Providers | - |
Capabilities
| Capability | Claude Haiku 4.5 | DeepSeek R1 Zero |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | No | Yes |
| JSON / Tool use | Yes | No |
| Structured outputs | Yes | No |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
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Last reviewed: 2026-07-26. Data sourced from public model cards and provider documentation.