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Model comparison Synced Apr 6, 2026

Anthropic: Claude 3.5 Haiku vs OpenAI: GPT-5.4 Mini

Side-by-side comparison of Anthropic: Claude 3.5 Haiku and OpenAI: GPT-5.4 Mini. Compare pricing, context window, capabilities, and find out which is better for your workflow.

Verdict

strong confidence

OpenAI: GPT-5.4 Mini leads overall

OpenAI: GPT-5.4 Mini leads in context window and capabilities and max output, making it the stronger choice for most workflows. Anthropic: Claude 3.5 Haiku remains competitive with advantages in price.

Best for with Anthropic: Claude 3.5 Haiku

Budget-conscious workflows

Best for with OpenAI: GPT-5.4 Mini

Long document processingMulti-modal tasksLong-form content generation

Side-by-side

Technical specifications

Anthropic: Claude 3.5 Haiku OpenAI: GPT-5.4 Mini
Provider Anthropic OpenAI
Input price $0.80/M $0.75/M
Output price $4/M $5/M
Context window 200K 400K
Max output 8K 128K
Capabilities
Tool useVision
Tool useVisionReasoning
Released Nov 4, 2024 Mar 17, 2026

Scoring breakdown

How each dimension compares

Price

Anthropic: Claude 3.5 Haiku leads

Anthropic: Claude 3.5 Haiku

$4/M tokens

OpenAI: GPT-5.4 Mini

$5/M tokens

Context Window

OpenAI: GPT-5.4 Mini leads

Anthropic: Claude 3.5 Haiku

200K tokens

OpenAI: GPT-5.4 Mini

400K tokens

Capabilities

OpenAI: GPT-5.4 Mini leads

Anthropic: Claude 3.5 Haiku

2/4

OpenAI: GPT-5.4 Mini

3/4

Max Output

OpenAI: GPT-5.4 Mini leads

Anthropic: Claude 3.5 Haiku

8K tokens

OpenAI: GPT-5.4 Mini

128K tokens

Recency

Anthropic: Claude 3.5 Haiku

Nov 2024

OpenAI: GPT-5.4 Mini

Mar 2026

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