Anthropic
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Listed October 2025
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Compact / Edge
Claude Haiku 4.5
Arena #142 • score 1414 ±2
Proprietary model from Anthropic, listed October 2025. Arena text score 1414 (#142 of 414 entries). $1.00 input / $5.00 output per 1M tokens. 200K tokens context.
Parameters
Not disclosed
Context Window
200K tokens
Input / 1M tokens
$1.00
Output / 1M tokens
$5.00
Benchmark Results
- Arena Text Elo: 1414 (#142 of 414 on arena.ai · ±2 · 146,351 votes · variant: claude-haiku-4-5-20251001)
- SWE-bench Verified: 66.6% (mini-SWE-agent (bash only) · run 'Claude 4.5 Haiku (high)' · 2026-02-17)
- AA Intelligence Index: 16.9 (Artificial Analysis v4.3 · best setting: Claude 4.5 Haiku (Reasoning) · checked 2026-10-11)
- AA Coding Index: 43.9 (Artificial Analysis v4.3 · best setting: Claude 4.5 Haiku (Reasoning) · checked 2026-10-11)
- AA Agentic Index: 8 (Artificial Analysis v4.3 · best setting: Claude 4.5 Haiku (Reasoning) · checked 2026-10-11)