Updated 5/23/2026
GPT-5.4 mini is OpenAI's fast, low-cost model (Mar 2026) with a 400K context window — strong coding, tool calling and image reasoning, roughly 2x faster than GPT-5 mini.
GPT-5.4 mini (March 2026) is OpenAI's fast, low-cost model with a 400K-token context window, optimized for coding, tool calling, and image reasoning. It runs 2×+ faster than GPT-5 mini while approaching the larger GPT-5.4 on several benchmarks.
Available free to start via Vercel AI Gateway ($5/month in credits, no credit card) — a great pick for strong capability at high speed and low cost.
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The following platforms provide free access to GPT-5.4 mini through free tiers, trial credits, or daily quotas.
| Provider | Context Window | Free Quota | Requires CC | Trust | Action |
|---|---|---|---|---|---|
| Vercel AI Gateway | 400K | $5/mo | No | Trust 98 | Details |
Yes. GPT-5.4 mini is available for free through 1 provider(s) listed below, with no purchase required.
Free access varies by provider — Vercel AI Gateway: Monthly Credits.
Sign up with Vercel AI Gateway, then create an API key from your dashboard. See the provider details above for the exact steps.
GPT-5.4 mini is currently available for free via: Vercel AI Gateway.
Help the community by sharing other ways to access this model for free.
