GPT-4o-mini vs Claude Haiku 4.5Benchmark Comparison 2026

Objective comparison based on public benchmarks updated weekly: Intelligence Index, GPQA Diamond, Chatbot Arena ELO, pricing and speed.

Overall winner (2026)

Claude Haiku 4.5

5 of 7 criteria won

OpenAI

GPT-4o-mini

Intelligence Index

12.6

2 criteria won

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Anthropic

Claude Haiku 4.5

Winner

Intelligence Index

31.0

Coding Index

29.6

5 criteria won

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Detailed Comparison

CritérioGPT-4o-miniClaude Haiku 4.5
Chatbot Arena ELO
Intelligence Index (AA)12.631.0
Coding Index (AA)29.6
GPQA Diamond42.6%65.0%
Input price ($/1M tok)$0.15$1.25
Output price ($/1M tok)$0.60$5.00
Context window128K tokens200K tokens
Speed (tokens/s)57 tok/s113 tok/s

✓ = winner in this criterion • Source: Artificial Analysis, LMArena, official APIs • Updated weekly

Technical Specifications

GPT-4o-mini

Company
OpenAI
Context window
128K tokens
Input ($/1M tok)
$0.15
Output ($/1M tok)
$0.60
Speed
57 tok/s
Release
Jul 2024
Multimodal
Yes
Open Source
No

Claude Haiku 4.5

Company
Anthropic
Context window
200K tokens
Input ($/1M tok)
$1.25
Output ($/1M tok)
$5.00
Speed
113 tok/s
Release
Oct 2025
Multimodal
Yes
Open Source
No
Official website
Visit

When to use GPT-4o-mini vs Claude Haiku 4.5?

Choosing between GPT-4o-mini and Claude Haiku 4.5 depends on your use case, budget and technical requirements. Below, a practical guide based on benchmark data and each model's specifications.

Use GPT-4o-mini when:

OpenAI · Multimodal

  • High-volume token projects — at $0.15/1M input tokens, the cost per call is low enough for production use at scale
  • Processing images, PDFs and visual documents alongside text — useful for analyzing contracts, reports with charts and mixed content
  • Long document analysis — 128K tokens context window allows processing books, legal databases and extensive logs
  • AI agents with tool calling — workflow automation, external API integration and data pipelines
  • API integration in SaaS applications — direct API access with documented SLA
View full GPT-4o-mini profile

Use Claude Haiku 4.5 when:

Anthropic · Multimodal

  • Complex reasoning, math and advanced programming — reasoning models are optimized for problems requiring multiple logical steps
  • High-volume token projects — at $1.25/1M input tokens, the cost per call is low enough for production use at scale
  • Processing images, PDFs and visual documents alongside text — useful for analyzing contracts, reports with charts and mixed content
  • Long document analysis — 200K tokens context window allows processing books, legal databases and extensive logs
  • AI agents with tool calling — workflow automation, external API integration and data pipelines
  • API integration in SaaS applications — direct API access with documented SLA
View full Claude Haiku 4.5 profile
SWEN Verdict: Claude Haiku 4.5 wins in more objective criteria in this comparison (5 vs 2). For most use cases, Claude Haiku 4.5 offers better aggregate performance — but GPT-4o-mini may be preferable if your project prioritizes high-volume token projects.

Frequently Asked Questions

GPT-4o-mini or Claude Haiku 4.5: which is better?

Claude Haiku 4.5 wins in 5 of 7 criteria analyzed. Check the full table to choose based on your use case.

Where does this benchmark data come from?

Data is aggregated from Artificial Analysis (Intelligence Index, Coding Index) and Chatbot Arena/LMArena (ELO). Pricing and specs come from official APIs. Updated weekly.

What is the Intelligence Index?

The Intelligence Index is an aggregate score from Artificial Analysis that combines multiple academic benchmarks (MMLU, GPQA, LiveBench, etc.) into a single rating. The higher the score, the more capable the model is at reasoning tasks.

Is GPT-4o-mini cheaper than Claude Haiku 4.5?

Yes. GPT-4o-mini costs $0.15/1M input tokens, while Claude Haiku 4.5 costs $1.25/1M tokens — 733% more expensive. For high-volume projects, GPT-4o-mini represents significant savings. Total cost also depends on output pricing and your application's usage pattern.

GPT-4o-mini or Claude Haiku 4.5: which has a larger context window?

Claude Haiku 4.5 has the larger context window: 200K tokens vs 128K tokens. For long document analysis, extensive transcripts or full codebases, the larger context window is a decisive criterion.

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