# GPT-4.5

> Source: Benchize (https://benchize.com) — https://benchize.com/models/gpt-4-5. When citing or reusing this content, credit "Benchize" and link to https://benchize.com/models/gpt-4-5.

OpenAI

Canonical URL: https://benchize.com/models/gpt-4-5
Last updated: Thu, 22 Oct 2026 08:20:15 GMT

Reproduction and quotation must name Benchize, link to the canonical HTML URL, and retain individual source citations.

OpenAI

## Benchmarks

| Benchmark | Score | Rank | Cost | Source |  |
| --- | --- | --- | --- | --- | --- |
| [SimpleBench](https://benchize.com/benchmarks/simplebench%3Aavg-at-5.md) | 34.5% | 46 / 62 | — | [simplebench](https://simple-bench.com/static/js/leaderboard-data.js) |  |
| ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `accuracy` \| 34.5 \| percent \| average_at_5 \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration GPT-4.5 thinkingEnabled Not reported ### Reported statistics rank 79th ### Source [Original source](https://simple-bench.com/static/js/leaderboard-data.js) Source simplebench Original model label GPT-4.5 Observed 2026-10-22T03:40:04.693Z Evidence SHA-256 `b2d0285ad3e4e15750ed20d39897e7558d1c05e8962e90c861b06f93c8019dc9` Source locator `/rows/80` |  |  |  |  |  |
| [ARC-AGI-1](https://benchize.com/benchmarks/arc-prize%3Av1_Semi_Private.md) | 10.3% | 229 / 245 | 0.29usd per task | [arc prize · v1](https://arcprize.org/media/data/leaderboard/v1.json) |  |
| ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 0.103 \| score_fraction \| v1_Semi_Private \| Higher is better \| \| `cost_per_task` \| 0.29 \| usd_per_task \| v1_Semi_Private \| Lower is better \| ### Configuration evaluationSplit v1_Semi_Private harness Not reported modelGroup Not reported modelType Base LLM sourceModelVersion gpt-4-5-2025-02-27 ### Source [Original source](https://arcprize.org/media/data/leaderboard/v1.json) Source arc prize Original model label GPT-4.5 Source version v1 Observed 2026-10-22T05:20:04.066Z Evidence SHA-256 `2bf68d22dafba37047d07ad833ebc0e8199c9aa2f9eeaed50c75c1b704462836` Source locator `/evaluations/6` |  |  |  |  |  |
| [ARC-AGI-2](https://benchize.com/benchmarks/arc-prize%3Av2_Semi_Private.md) | 0.8% | 227 / 243 | 2.1usd per task | [arc prize · v2](https://arcprize.org/media/data/leaderboard/v2.json) |  |
| ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 0.008 \| score_fraction \| v2_Semi_Private \| Higher is better \| \| `cost_per_task` \| 2.1 \| usd_per_task \| v2_Semi_Private \| Lower is better \| ### Configuration evaluationSplit v2_Semi_Private harness Not reported modelGroup Not reported modelType Base LLM sourceModelVersion gpt-4-5-2025-02-27 ### Source [Original source](https://arcprize.org/media/data/leaderboard/v2.json) Source arc prize Original model label GPT-4.5 Source version v2 Observed 2026-10-22T05:20:04.306Z Evidence SHA-256 `4351eb696e78113b0459e9bb5f0258318b905efef34f473dcea51ce641b0d94d` Source locator `/evaluations/9` |  |  |  |  |  |

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Cite as: GPT-4.5 — Benchize, https://benchize.com/models/gpt-4-5 (retrieved 2026-10-22)