llmgauge

OpenAI · model

GPT-5.4 mini

$0.75/1M in · $4.50/1M out · 400K context. That's cheaper than 26% of the 298 models we track, by output price. Here's what it costs, how its price has moved, and where it fits.

output price · per 1M tokens
$4.50
input $0.75/1M · list
Context
400K
Input / 1M
$0.75
Output / 1M
$4.50
Modality
text + image + file
Provider
OpenAI
Tokenizer
GPT

Snapshot · source: provider list ↗ · how we measure →

cost at a typical workload
$675 / mo

For 1,500 input + 500 output tokens across 200,000 requests/month. That's 113× the cheapest tracked option (Ling-2.6-flash, $6.00/mo).

Tune the workload in the calculator →

output price history
output / 1M

Flat at $4.50 since tracking began 2026-06-14. Full history →

Where it fits

  • Long inputs — a 400K-token window holds roughly 600 pages of text at once.
  • Multimodal prompts — accepts image input alongside text.
  • Quality-first tasks where capability matters more than rate — a first-party flagship rather than a budget pick.

Watch for

    These notes are derived from price, context and modality — structural facts, not measured quality. Measured cost-to-finish-a-task lives on the real-cost index.

    Compare GPT-5.4 mini

    GPT-5.4 mini vs GPT-5.5GPT-5.4 mini vs GPT-5.4GPT-5.4 mini vs GPT-5.4 nanoGPT-5.4 mini vs gpt-oss-120bGPT-5.4 mini vs Claude Sonnet 4.6GPT-5.4 mini vs Claude Haiku 4.5GPT-5.4 mini vs Gemini 3.1 ProGPT-5.4 mini vs Gemini 2.5 ProGPT-5.4 mini vs Gemini 2.5 FlashGPT-5.4 mini vs Grok 4.3GPT-5.4 mini vs Grok 4.20GPT-5.4 mini vs Mistral Medium 3.5GPT-5.4 mini vs Mistral Large 3GPT-5.4 mini vs Qwen3 MaxGPT-5.4 mini vs GLM 4.6GPT-5.4 mini vs Kimi K2 ThinkingGPT-5.4 mini vs MiniMax M2.5

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    How to read GPT-5.4 mini's pricing

    Two numbers decide most of the bill: $0.75/1M for input (everything you send — prompt, context, attachments) and $4.50/1M for output (everything it generates, including hidden reasoning tokens). Output is priced 6.0× the input rate here, so the shape of your workload — how much it reads versus writes — matters as much as the headline figure. This is the provider's first-party list price, reconciled against the routed market each run.

    Frequently asked questions

    How much does GPT-5.4 mini cost per million tokens?

    GPT-5.4 mini is priced at $0.75 per 1M input tokens and $4.50 per 1M output tokens (first-party list price) as of the 2026-06-15 snapshot. Output is the figure that usually drives the bill. Enter your own token volumes in the cost calculator for a monthly estimate.

    What is GPT-5.4 mini's context window?

    GPT-5.4 mini has a 400K-token context window — roughly 600 pages of text. Prompt, attachments, conversation and the model's own output all share that budget, and every token you send is billed at the input rate.

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