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Claude 3.5 Haiku vs GPT-5.4 Mini

List-price comparison · Claude 3.5 Haiku details · GPT-5.4 Mini details

For a typical workload (100,000 requests / mo), Claude 3.5 Haiku costs 5% less $256.00/mo vs $270.00/mo.

 Claude 3.5 HaikuGPT-5.4 Mini
Input / 1M tokens$0.800$0.750
Output / 1M tokens$4.00$4.50
Typical request (1,200 in + 400 out)$0.0026$0.0027
Context window200k tokens400k tokens
Max output8,192 tokens128k tokens
TierBalancedBalanced
ProviderAnthropicOpenAI

Projected monthly cost

Rows open both models in the calculator — adjust volume and token counts there.

Claude 3.5 Haiku

Auto-synced from OpenRouter — no editorial write-up yet.

GPT-5.4 Mini

Good default for everyday chat, summarization, and lightweight agent steps where GPT-5.4-level reasoning isn't required.

Quality gap widens on long, multi-hop reasoning tasks — needs careful prompt design to avoid silent failures on edge cases.

More comparisons

Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.