GPT-5.4 Mini vs Mistral Small 4
Complete pricing and performance comparison between OpenAI's GPT-5.4 Mini and Mistral's Mistral Small 4.
Quick Verdict
Cheaper
Mistral Small 4
5.0x cheaper input, 7.5x cheaper output
Larger Context
GPT-5.4 Mini
400K vs 256K
Pricing Comparison
| Spec | GPT-5.4 Mini | Mistral Small 4 | Difference |
|---|---|---|---|
| Provider | OpenAI | Mistral | |
| Input / 1M tokens | $0.75 | $0.15 | Mistral Small 4 is 80% more expensive |
| Output / 1M tokens | $4.5 | $0.6 | Mistral Small 4 is 87% more expensive |
| Context Window | 400K | 256K | 2x difference |
| Max Output | 128K | 33K | |
| Tokenizer | o200k_base | cl100k_base |
Cost at Scale
Estimated cost at different usage levels (3:1 input-to-output token ratio, typical for chat).
| Usage | GPT-5.4 Mini | Mistral Small 4 | Savings |
|---|---|---|---|
Single request 1K in / 300 out | $0.0021 | $0.0003 | Mistral Small 4 saves $0.0018 |
10 requests 10K in / 3K out | $0.021 | $0.0033 | Mistral Small 4 saves $0.018 |
100 requests 100K in / 30K out | $0.210 | $0.033 | Mistral Small 4 saves $0.177 |
1,000 requests 1M in / 300K out | $2.10 | $0.330 | Mistral Small 4 saves $1.77 |
10,000 requests 10M in / 3M out | $21.00 | $3.30 | Mistral Small 4 saves $17.70 |
1M requests/mo 1B in / 300M out | $2100.00 | $330.00 | Mistral Small 4 saves $1770.00 |
Pros & Cons
GPT-5.4 Mini Strengths
- +Larger context window (400K vs 256K)
- +Higher max output tokens
Mistral Small 4 Strengths
- +Cheaper input tokens
- +Cheaper output tokens
When to Use Each Model
Choose GPT-5.4 Mini for
- →Long documents, large codebases, or multi-turn conversations
- →Generating long-form content or detailed code
Choose Mistral Small 4 for
- →Budget-conscious projects where cost is the primary factor
Frequently Asked Questions
Which is cheaper, GPT-5.4 Mini or Mistral Small 4?
For input tokens, Mistral Small 4 is 5.0x cheaper at $0.15/1M tokens. For output tokens, Mistral Small 4 is 7.5x cheaper at $0.6/1M tokens. At typical usage (1M input + 300K output), GPT-5.4 Mini costs $2.10 vs Mistral Small 4 at $0.330.
What's the context window difference?
GPT-5.4 Mini supports 400K context (400,000 tokens), while Mistral Small 4 supports 256K (256,000 tokens). GPT-5.4 Mini can handle 2x more context in a single request.
When should I choose GPT-5.4 Mini over Mistral Small 4?
Choose GPT-5.4 Mini when you need: Larger context window (400K vs 256K), Higher max output tokens. Choose Mistral Small 4 when you need: Cheaper input tokens, Cheaper output tokens.
How much would 10,000 API requests cost?
At 1K input + 300 output tokens per request (typical chat): GPT-5.4 Mini = $21.00, Mistral Small 4 = $3.30. At 10K input + 1K output per request (longer conversations): GPT-5.4 Mini = $120.00, Mistral Small 4 = $21.00.
Related Comparisons
GPT-5.4 vs GPT-5.4 Mini
$2.5 vs $0.75 per 1M input
GPT-5.4 vs Mistral Small 4
$2.5 vs $0.15 per 1M input
GPT-5.4 Mini vs GPT-5.4 Nano
$0.75 vs $0.2 per 1M input
GPT-5 vs GPT-5.4 Mini
$1.25 vs $0.75 per 1M input
GPT-5.4 Mini vs GPT-5 Mini
$0.75 vs $0.25 per 1M input
GPT-5.4 Mini vs o4 Mini
$0.75 vs $1.1 per 1M input