Claude 3.5 Haiku vs GPT-5.4 mini
Anthropic Claude 3.5 Haiku | OpenAI GPT-5.4 mini | |
|---|---|---|
| Overview | ||
| Company | Anthropic | OpenAI |
| Release date | Oct 22 2024 | Mar 17 2026 |
| Access | Proprietary | Proprietary |
| Specifications | ||
Context window | — | 400k |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 50%Best | 32% |
Coding SWE-Bench VerifiedReal coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 40.6% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 41.6% | — |
| Timeline | ||
| Release gap | Claude 3.5 Haiku shipped 511 days before GPT-5.4 mini | |
Which is better: Claude 3.5 Haiku or GPT-5.4 mini?
Claude 3.5 Haiku leads GPT-5.4 mini on 1 of the 1 benchmark they both report (BullshitBench v2). Claude 3.5 Haiku shipped 511 days before GPT-5.4 mini, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
On BullshitBench v2, Claude 3.5 Haiku leads at 50% vs GPT-5.4 mini at 32%.
Frequently asked questions
Claude 3.5 Haiku was released by Anthropic on Oct 22 2024.
GPT-5.4 mini was released by OpenAI on Mar 17 2026.
Other comparisons
Claude 3.5 Haiku vs Gemini 3.5 FlashGPT-5.4 mini vs Gemini 3.5 FlashClaude 3.5 Haiku vs Muse Spark 1.1GPT-5.4 mini vs Muse Spark 1.1Claude 3.5 Haiku vs Grok 4.5GPT-5.4 mini vs Grok 4.5Claude 3.5 Haiku vs DeepSeek-V4-ProGPT-5.4 mini vs DeepSeek-V4-ProClaude 3.5 Haiku vs Mistral Medium 3.5GPT-5.4 mini vs Mistral Medium 3.5Claude 3.5 Haiku vs Kimi K2.7 CodeGPT-5.4 mini vs Kimi K2.7 Code