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Claude Haiku 4.5 vs Hy3 preview

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 Hy3 preview.

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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Tencent

Hy3 preview

Hy3 preview is a high-efficiency Mixture-of-Experts model from Tencent designed for agentic workflows and production use. It supports configurable reasoning levels across disabled, low, and high modes, allowing it to...

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Technical Specifications

SpecificationClaude Haiku 4.5Hy3 preview
ProviderAnthropicTencent
Context Window200,000 tokens262,144 tokens
Agent Suitability87/100N/A
Time to First Token (TTFT)180 msN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablestable
API AvailableYesYes
Released Date2025-10-152026-04-22

API Pricing Comparison

Input Price per Million Tokens

Claude Haiku 4.5

$1.00

Hy3 preview

$0.06

Output Price per Million Tokens

Claude Haiku 4.5

$5.00

Hy3 preview

$0.21

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%vs8350.0%
Claude Haiku 4.5
Hy3 preview
HumanEvalPython coding & logic synthesis
8600.0%vs8400.0%
Claude Haiku 4.5
Hy3 preview
MATHComplex mathematical problem solving
7500.0%vs5900.0%
Claude Haiku 4.5
Hy3 preview
GPQAGraduate-level expert reasoning
5500.0%vs4200.0%
Claude Haiku 4.5
Hy3 preview
HellaSwagCommonsense reasoning and inference
9350.0%vs8480.0%
Claude Haiku 4.5
Hy3 preview
MT-BenchMulti-turn conversation flow quality
890.0%vs882.0%
Claude Haiku 4.5
Hy3 preview

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

Hy3 preview Quirks & Gotchas

No developer gotchas reported.