Claude 3.5 Haiku vs Llama Guard 4 12B
Claude 3.5 Haiku (2024) and Llama Guard 4 12B (2025) are frontier reasoning models from Anthropic and AI at Meta. Claude 3.5 Haiku ships a 200k-token context window, while Llama Guard 4 12B ships a 164K-token context window. On pricing, Llama Guard 4 12B costs $0.18/1M input tokens versus $0.8/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Llama Guard 4 12B is ~344% cheaper at $0.18/1M; pay for Claude 3.5 Haiku only for coding workflow support.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-10-22 | 2025-04-05 |
| Context window | 200k | 164K |
| Parameters | — | — |
| Architecture | decoder only | decoder only |
| License | Unknown | Open Source |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Claude 3.5 Haiku | Llama Guard 4 12B |
|---|---|---|
| Input price | $0.8/1M tokens | $0.18/1M tokens |
| Output price | $4/1M tokens | $0.18/1M tokens |
| Providers |
Capabilities
| Capability | Claude 3.5 Haiku | Llama Guard 4 12B |
|---|---|---|
| Vision | Yes | No |
| Multimodal | No | No |
| Reasoning | Yes | No |
| Function calling | No | No |
| Tool use | No | No |
| Structured outputs | Yes | Yes |
| Code execution | Yes | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: Claude 3.5 Haiku, reasoning mode: Claude 3.5 Haiku, and code execution: Claude 3.5 Haiku. Both models share structured outputs, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, Claude 3.5 Haiku lists $0.8/1M input and $4/1M output tokens, while Llama Guard 4 12B lists $0.18/1M input and $0.18/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Llama Guard 4 12B lower by about $1.58 per million blended tokens. Availability is 5 providers versus 3, so concentration risk also matters.
Choose Claude 3.5 Haiku when coding workflow support, larger context windows, and broader provider choice are central to the workload. Choose Llama Guard 4 12B when provider fit and lower input-token cost are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions.
FAQ
Which has a larger context window, Claude 3.5 Haiku or Llama Guard 4 12B?
Claude 3.5 Haiku supports 200k tokens, while Llama Guard 4 12B supports 164K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Claude 3.5 Haiku or Llama Guard 4 12B?
Llama Guard 4 12B is cheaper on tracked token pricing. Claude 3.5 Haiku costs $0.8/1M input and $4/1M output tokens. Llama Guard 4 12B costs $0.18/1M input and $0.18/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Claude 3.5 Haiku or Llama Guard 4 12B open source?
Claude 3.5 Haiku is listed under Unknown. Llama Guard 4 12B is listed under Open Source. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, Claude 3.5 Haiku or Llama Guard 4 12B?
Claude 3.5 Haiku has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for reasoning mode, Claude 3.5 Haiku or Llama Guard 4 12B?
Claude 3.5 Haiku has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Claude 3.5 Haiku and Llama Guard 4 12B?
Claude 3.5 Haiku is available on Anthropic, OpenRouter, AWS Bedrock, GCP Vertex AI, and Replicate API. Llama Guard 4 12B is available on NVIDIA NIM, Replicate API, and OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-05-11. Data sourced from public model cards and provider documentation.