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Claude Haiku 4 vs GPT-4 1.5-nano: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 20, 2026By LLMversusUpdated June 14, 2026View methodology

⚡ Quick Answer

GPT-4.1 Nano is significantly cheaper at $0.10/$0.40 per million tokens vs $0.80/$4.00. Claude Haiku 4 is stronger for coding with a coding ELO of 1195 vs 1150. Claude Haiku 4 ranks higher overall with an Arena ELO of 1220 vs 1180. GPT-4.1 Nano offers a larger 1048K context window vs 200K.

Updated: April 20, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureClaude Haiku 4GPT-4 1.5-nano
ProviderAnthropicOpenAI
Input Price / 1M tokens$1.00$0.100
Output Price / 1M tokens$5.00$0.400
Context Window
200K
128K
Max Output Tokens
8,192
4,096
Arena ELO
1,220
1,150
Coding ELO
1,195
1,160
TTFT (ms)
150
120
Tokens/sec
130
150
MultimodalYesNo
JSON ModeYesYes
Function CallingYesYes
VisionYesNo
When to Use Claude Haiku 4

Choose Claude Haiku 4 when you need: very fast response times, 200k context window, affordable for anthropic quality, good instruction following. It excels at chatbots, classification, cost-sensitive, high-volume tasks.

Strengths:

  • Very fast response times
  • 200K context window
  • Affordable for Anthropic quality
  • Good instruction following

Best for:

chatbotsclassificationcost-sensitivehigh-volume
When to Use GPT-4 1.5-nano

Choose GPT-4.1 Nano when you need: ultra-low pricing, 1m context window, very fast inference, ideal for simple tasks at scale. It excels at chatbots, classification, cost-sensitive, high-volume tasks. It is also the more cost-effective option between the two. Its 1048K context window is larger, making it better for long-document processing.

Strengths:

  • Super cheap
  • Very fast
  • Large context

Best for:

cost-effectivefast-inference

Frequently Asked Questions

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