GPT-5.1 Codex mini vs DeepSeek Chat
Side-by-side comparison of pricing and capabilities
GPT-5.1 Codex mini
DeepSeek Chat
Input Price Comparison
| Attribute | GPT-5.1 Codex mini | DeepSeek Chat |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Input Price | $0.25 /1M tokens | $0.27 /1M tokens |
| Output Price | $2 /1M tokens | $1.1 /1M tokens |
| Cached Input | $0.025 /1M tokens | $0.027 /1M tokens |
| Context Window | 400K | 128K |
| Type | chat | chat |
| Status | current | current |
Capability Comparison
| Capability | GPT-5.1 Codex mini | DeepSeek Chat |
|---|---|---|
| coding | ||
| multilingual |
Which should you choose?
Budget-conscious: GPT-5.1 Codex mini is 7% cheaper on input tokens ($0.25 vs $0.27 per 1M tokens).
Context-heavy tasks: GPT-5.1 Codex mini offers a larger context window (400K vs 128K), making it better for long documents or conversations.
Capability fit: GPT-5.1 Codex mini supports 1 capabilities (coding), while DeepSeek Chat supports 2 (coding, multilingual).
Frequently Asked Questions
Which is cheaper: GPT-5.1 Codex mini or DeepSeek Chat?
GPT-5.1 Codex mini costs $0.25/1M input vs DeepSeek Chat at $0.27/1M input. GPT-5.1 Codex mini is 7% cheaper on input tokens.
How do output prices compare between GPT-5.1 Codex mini and DeepSeek Chat?
GPT-5.1 Codex mini output: $2/1M, DeepSeek Chat output: $1.1/1M. DeepSeek Chat is more economical for generation-heavy workloads.
What is GPT-5.1 Codex mini best used for?
GPT-5.1 Codex mini is best for budget-conscious applications, high-volume chatbots, and tasks where cost efficiency is the primary concern.
What is DeepSeek Chat best used for?
DeepSeek Chat is suited for complex reasoning, analysis, and tasks that benefit from its coding and multilingual capabilities.