Looking for an honest Anthropic Claude 3.5 Haiku vs OpenAI GPT-4o comparison in 2026? We scored both ai language models on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. Both products score nearly identically (65/100 vs 67/100) — this is a genuine toss-up that hinges on which specs matter most for your use case. The widest gap is in design and build, where the OpenAI GPT-4o pulls noticeably ahead.
Anthropic
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Anthropic Claude 3.5 Haiku and OpenAI GPT-4o are closely matched ai language models devices with nearly identical overall scores (65 vs 67). The best choice depends on which specific features matter most to you.
Scores are relative within the ai language modelscategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
✓ Pros
✗ Cons
✓ Pros
✗ Cons
Lower cost = better value. Free = open-source self-hosted.
| Metric | 3.5 Haiku | OpenAI GPT-4o |
|---|---|---|
| Input (Prompt) | ✓$0.80/1M | $2.50/1M |
| Output (Completion) | ✓$4.00/1M | $10.00/1M |
| Open Source | Proprietary | Proprietary |
Context Window (tokens)
| Metric | 3.5 Haiku | OpenAI GPT-4o |
|---|---|---|
| Max Output | 8,192 tok | ✓16,384 tok |
| Speed | ✓180 tok/s | 120 tok/s |
| Time to First Token | ✓350ms | 500ms |
| Languages | 50+ | 50+ |
Higher is better. Industry-standard AI evaluation benchmarks.
3.5 Haiku
OpenAI GPT-4o
3.5 Haiku
OpenAI GPT-4o
3.5 Haiku
OpenAI GPT-4o
3.5 Haiku
OpenAI GPT-4o
3.5 Haiku
OpenAI GPT-4o
| Feature | 3.5 Haiku | OpenAI GPT-4o |
|---|---|---|
| Reasoning / Chain-of-Thought | ✕ | ✕ |
| Vision (Image Input) | ✓ | ✓ |
| Audio Input | ✕ | ✓ |
| Video Input | ✕ | ✕ |
| Image/Audio Output | ✕ | ✓ |
| Function Calling / Tools | ✓ | ✓ |
| JSON Mode | ✓ | ✓ |
| Real-time Web Access | ✕ | ✕ |
| Fine-tuning Support | ✕ | ✓ |
| Batch API | ✓ | ✓ |
| Streaming | ✓ | ✓ |
| Open Source | ✕ | ✕ |
| Field | 3.5 Haiku | OpenAI GPT-4o |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Knowledge Cutoff | 2024-07 | 2024-04 |
| Best For | fast taskshigh volumecost efficiencycoding | generalcodingvisionmultimodal |
Buy Anthropic Claude 3.5 Haiku if…
Choose the Anthropic Claude 3.5 Haiku if budget is your top priority — it offers competitive specs at a lower price point.
Buy OpenAI GPT-4o if…
The OpenAI GPT-4o is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Anthropic Claude 3.5 Haiku and OpenAI GPT-4o are closely matched ai language models devices with nearly identical overall scores (65 vs 67). The best choice depends on which specific features matter most to you.
Both products score similarly — it depends on your priorities.
Check the latest prices using the buy links above.
Choose the Anthropic Claude 3.5 Haiku if budget is your top priority — it offers competitive specs at a lower price point.
The OpenAI GPT-4o is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Reviewed by VersusMatrix Editorial Team
Last updated: April 25, 2026
Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.
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