Claude Haiku 4.5 (latest) vs o4-mini
Side-by-side comparison across metrics, pricing, and overall score — every value traced to a source.
Verdict: Claude Haiku 4.5 (latest) ranks highest overall (#9) with a score of 32.8.
The best choice still depends on which metrics matter for your workload — per-metric winners are marked below.
What the numbers hide
Computed from the published values below — no estimates, no generated claims.
Fragile verdict
The overall winner flips to o4-mini if Output Price is weighted at 30% (it counts for 18% today). If output price drives your decision, the ranking above may not be your ranking.
Fragile verdict
The overall winner flips to o4-mini if Input Price is weighted at 10% (it counts for 24% today). If input price drives your decision, the ranking above may not be your ranking.
Real tradeoff
Claude Haiku 4.5 (latest) clearly beats o4-mini on Input Price but clearly loses on Output Price — this pair is a priorities question, not a quality question.
What nobody reports
SWE-Bench Pro Score (1 of 2 missing) — the questions worth asking vendors directly.
AI hot take
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| Metric | Claude Haiku 4.5 (latest)Anthropic | o4-miniOpenAI |
|---|---|---|
| Overall OptiSift Score | 32.8#9 | 20.4#17 |
| Input Price | $1 | $1.1 |
| Output Price | $5 | $4.4 |
| Cache Read Price | $0.1 | $0.28 |
| Context Window | 200K | 200K |
| Max Output Tokens | 64K | 100K |
| SWE-Bench Pro Score | 39.45% | — |
| Tool Calling | Yes | Yes |
| Extended Reasoning | Yes | Yes |
About these models
#9Claude Haiku 4.5 (latest)
Anthropic
Claude Haiku 4.5 (latest) is Anthropic's reasoning-capable model: $1/$5 per 1M input/output tokens, 200K token context window, 39.45% on SWE-Bench Pro.
#17o4-mini
OpenAI
o4-mini is OpenAI's reasoning-capable model: $1.10/$4.40 per 1M input/output tokens, 200K token context window.