Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)
This page compares Claude Haiku 4.5 (Anthropic) and OpenAI: o3 Mini High (OpenAI) using the latest snapshots we have as of Aug 17, 2026. OpenAI: o3 Mini High wins on output price at $4.4/1M. Claude Haiku 4.5 has the larger context window (200k tokens). Every cell below is a dated snapshot from a named public source — we do not invent missing scores, and we do not run SWE-bench ourselves.
Anthropic
Claude Haiku 4.5Anthropic cheap/fast Claude SKU. Official Claude Platform list price $1/$5 per 1M tokens (Anthropic Haiku page).
OpenAI
OpenAI: o3 Mini HighAuto-discovered from OpenRouter (openai/o3-mini-high). Preview until a second source matches.
Instant pairwise benchmark recalculation across 400+ LLMs
Category wins across intelligence, speed, and pricing efficiency.
Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy
Generation throughput and time to first token responsiveness
Cost per million tokens and max context window length
Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.
No shared data
No shared data
$0.60/1M cheaper
Simulate monthly production API costs in USD (US Dollar).
OpenAI: o3 Mini High is estimated to save $5.50/month ($66/year).
Need SWE-bench on both sides.
Lower output list price ($4.4/1M).
Need TTFT on both sides.
Larger window (200k).
Claude Haiku 4.5 is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | insufficient data | Need SWE-bench on both sides. |
| High-volume chat | OpenAI: o3 Mini High | Lower output list price ($4.4/1M). |
| Voice / low-latency UI | insufficient data | Need TTFT on both sides. |
| Long-document RAG | Claude Haiku 4.5 | Larger window (200k). |
| Screenshots / vision | Claude Haiku 4.5 | Claude Haiku 4.5 is the side marked multimodal in the catalog. |
$1/$5 hosted Claude vs a cheap long-context open sibling. The alternative-to-Sonnet pair that is honest.
Huge window, cheap hosted lists. The Haiku alternative that is actually open-weight.
Official Anthropic list $1/$5. This is the SKU behind “cheapest Claude alternative” that is still Claude.
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The real PNG is generated at /compare/claude-haiku-4-5-vs-o3-mini-high/opengraph-image for crawlers.
Verified head-to-head card
