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Claude Haiku 4.5 vs Llama Guard 4 12B

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Claude Haiku 4.5 and Llama Guard 4 12B.

Anthropic

Claude Haiku 4.5

Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance...

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Meta

Llama Guard 4 12B

Llama Guard 4 is a Llama 4 Scout-derived multimodal pretrained model, fine-tuned for content safety classification. Similar to previous versions, it can be used to classify content in both LLM...

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Technical Specifications

SpecificationClaude Haiku 4.5Llama Guard 4 12B
ProviderAnthropicMeta
Context Window200,000 tokens163,840 tokens
Agent Suitability87/100N/A
Time to First Token (TTFT)180 msN/A
Deployment Modelmanaged apiself hostable
Production Stabilitystablestable
API AvailableYesYes
Released Date2025-10-152025-04-30

API Pricing Comparison

Input Price per Million Tokens

Claude Haiku 4.5

$1.00

Llama Guard 4 12B

$0.18

Output Price per Million Tokens

Claude Haiku 4.5

$5.00

Llama Guard 4 12B

$0.18

Want to test both models live?

Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

MMLUGeneral knowledge & multi-task understanding
8480.0%vsN/A
Claude Haiku 4.5
Llama Guard 4 12B
HumanEvalPython coding & logic synthesis
8600.0%vsN/A
Claude Haiku 4.5
Llama Guard 4 12B
MATHComplex mathematical problem solving
7500.0%vsN/A
Claude Haiku 4.5
Llama Guard 4 12B
GPQAGraduate-level expert reasoning
5500.0%vsN/A
Claude Haiku 4.5
Llama Guard 4 12B
HellaSwagCommonsense reasoning and inference
9350.0%vsN/A
Claude Haiku 4.5
Llama Guard 4 12B
MT-BenchMulti-turn conversation flow quality
890.0%vsN/A
Claude Haiku 4.5
Llama Guard 4 12B

Claude Haiku 4.5 Quirks & Gotchas

  • Fastest TTFT in the Claude lineup — ideal for real-time chat
  • Tool calling limited compared to Sonnet — best for simple classification and routing

Llama Guard 4 12B Quirks & Gotchas

No developer gotchas reported.