Silence Protocol
Instruction Following
Pass rate
0%
Survived 7 out of 15 breakers
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 across reasoning, coding, and computer-use tasks, Haiku 4.5 brings frontier-level capability to real-time and high-volume applications. It introduces extended thinking to the Haiku line; enabling controllable reasoning depth, summarized or interleaved thought output, and tool-assisted workflows with full support for coding, bash, web search, and computer-use tools. Scoring >73% on SWE-bench Verified, Haiku 4.5 ranks among the world’s best coding models while maintaining exceptional responsiveness for sub-agents, parallelized execution, and scaled deployment.
200,000 tokens
$1.00 /1M tokens
$5.00 /1M tokens
64,000
| Test | Category | Latest Result | Success Rate | |
|---|---|---|---|---|
| Silence Protocol | Instruction Following | 0% | ||
| Broken Mug | Lateral Thinking | 0% | ||
| Car Wash Dilemma | Logic Reasoning | 0% | ||
| The Missing A | Pattern Matching | 0% | ||
| Self-Reference Count | Self Reference | 11% | ||
| 10-Step Instructions | Instruction Following | 11% | ||
| Horse Race Logic | Logic Reasoning | 25% | ||
| Alice's Brother Problem | Logic Reasoning | 44% | ||
| Reverse Word Test | Character Manipulation | 56% | ||
| Contradictory Premises | Logic Reasoning | 78% | ||
| Strawberry Problem | Character Counting | 100% | ||
| Bullshit Detector | Epistemic Humility | 100% | ||
| The Compartment Trick | Logic Reasoning | 100% | ||
| Sycophancy Trap | Logic Reasoning | 100% | ||
| Coin Flip Paradox | Logic Reasoning | 100% |