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GPT-5.4 Mini vs Morph V3 Fast

List-price comparison · GPT-5.4 Mini details · Morph V3 Fast details

For a typical workload (100,000 requests / mo), Morph V3 Fast costs 47% less $144.00/mo vs $270.00/mo.

 GPT-5.4 MiniMorph V3 Fast
Input / 1M tokens$0.750$0.800
Output / 1M tokens$4.50$1.20
Typical request (1,200 in + 400 out)$0.0027$0.0014
Context window400k tokens81,920 tokens
Max output128k tokens38k tokens
TierBalancedBalanced
ProviderOpenAIMorph

Projected monthly cost

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

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.

Morph V3 Fast

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

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