GPT-5.4 Nano vs GPT-5.1 Codex mini
Side-by-side comparison of pricing and capabilities
GPT-5.4 Nano
GPT-5.1 Codex mini
Input Price Comparison
| Attribute | GPT-5.4 Nano | GPT-5.1 Codex mini |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input Price | $0.2 /1M tokens | $0.25 /1M tokens |
| Output Price | $1.25 /1M tokens | $2 /1M tokens |
| Cached Input | $0.020 /1M tokens | $0.025 /1M tokens |
| Context Window | 272K | 400K |
| Type | chat | chat |
| Status | current | current |
Capability Comparison
| Capability | GPT-5.4 Nano | GPT-5.1 Codex mini |
|---|---|---|
| multilingual | ||
| coding |
Which should you choose?
Budget-conscious: GPT-5.4 Nano is 20% cheaper on input tokens ($0.2 vs $0.25 per 1M tokens).
Context-heavy tasks: GPT-5.1 Codex mini offers a larger context window (400K vs 272K), making it better for long documents or conversations.
Capability fit: GPT-5.4 Nano supports 1 capabilities (multilingual), while GPT-5.1 Codex mini supports 1 (coding).
Frequently Asked Questions
Which is cheaper: GPT-5.4 Nano or GPT-5.1 Codex mini?
GPT-5.4 Nano costs $0.2/1M input vs GPT-5.1 Codex mini at $0.25/1M input. GPT-5.4 Nano is 20% cheaper on input tokens.
How do output prices compare between GPT-5.4 Nano and GPT-5.1 Codex mini?
GPT-5.4 Nano output: $1.25/1M, GPT-5.1 Codex mini output: $2/1M. GPT-5.4 Nano is more economical for generation-heavy workloads.
What is GPT-5.4 Nano best used for?
GPT-5.4 Nano is best for budget-conscious applications, high-volume chatbots, and tasks where cost efficiency is the primary concern.
What is GPT-5.1 Codex mini best used for?
GPT-5.1 Codex mini is suited for complex reasoning, analysis, and tasks that benefit from its coding capabilities.