| Signal | GPT-5.4 Mini | Delta | GPT-5 Codex |
|---|---|---|---|
Capabilities | 100 | +17 | |
Benchmarks | 90 | +90 | |
Pricing | 5 | -5 | |
Context window size | 89 | -- | |
Recency | 100 | -- | |
Output Capacity | 85 | -- | |
| Overall Result | 2 wins | of 6 | 1 wins |
30
days ranked higher
0
days
0
days ranked higher
OpenAI
OpenAI
GPT-5.4 Mini saves you $325.00/month
That's $3900.00/year compared to GPT-5 Codex at your current usage level of 100K calls/month.
| Metric | GPT-5.4 Mini | GPT-5 Codex | Winner |
|---|---|---|---|
| Overall Score | 93 | 85 | GPT-5.4 Mini |
| Rank | #3 | #43 | GPT-5.4 Mini |
| Quality Rank | #3 | #43 | GPT-5.4 Mini |
| Adoption Rank | #3 | #43 | GPT-5.4 Mini |
| Parameters | -- | -- | -- |
| Context Window | 400K | 400K | -- |
| Pricing | $0.75/$4.50/M | $1.25/$10.00/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 83 | GPT-5.4 Mini |
| Benchmarks | 90 | -- | GPT-5.4 Mini |
| Pricing | 5 | 10 | GPT-5 Codex |
| Context window size | 89 | 89 | GPT-5.4 Mini |
| Recency | 100 | 100 | GPT-5.4 Mini |
| Output Capacity | 85 | 85 | GPT-5.4 Mini |
Our composite score (0–100) combines six weighted signals: benchmark performance (25%), pricing efficiency (25%), context window size (15%), model recency (15%), output capacity (10%), and capability versatility (10%). Here's what the scores mean for these two models:
Scores 93/100 (rank #3), placing it in the top 99% of all 290 models tracked.
Scores 85/100 (rank #43), placing it in the top 86% of all 290 models tracked.
GPT-5.4 Mini has a 8-point advantage, which typically translates to noticeably better performance on complex reasoning, code generation, and multi-step tasks.
GPT-5.4 Mini offers 53% better value per quality point. At 1M tokens/day, you'd spend $78.75/month with GPT-5.4 Mini vs $168.75/month with GPT-5 Codex - a $90.00 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Higher benchmark score (0/100) indicates stronger performance on coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Faster response time (speed score 0/100) is critical for user-facing chat. GPT-5.4 Mini also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (400K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($4.50/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (93/100) correlates with better nuance, coherence, and style in long-form content
Image understanding & OCR
Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly
GPT-5.4 Mini has a moderate advantage with a 8.299999999999997-point lead in composite score. It wins on more signal dimensions, but GPT-5 Codex has specific strengths that could make it the better choice for certain workflows.
Best for Quality
GPT-5.4 Mini
Marginally better benchmark scores; both are excellent
Best for Cost
GPT-5.4 Mini
53% lower pricing; better value at scale
Best for Reliability
GPT-5.4 Mini
Higher uptime and faster response speeds
Best for Prototyping
GPT-5.4 Mini
Stronger community support and better developer experience
Best for Production
GPT-5.4 Mini
Wider enterprise adoption and proven at scale
by OpenAI
| Capability | GPT-5.4 Mini | GPT-5 Codex |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Searchdiffers | ||
| Image Output |
OpenAI
OpenAI
GPT-5.4 Mini saves you $7.50/month
That's 53% cheaper than GPT-5 Codex at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | GPT-5.4 Mini | GPT-5 Codex |
|---|---|---|
| Context Window | 400K | 400K |
| Max Output Tokens | 128,000 | 128,000 |
| Open Source | No | No |
| Created | Mar 17, 2026 | Sep 23, 2025 |
GPT-5.4 Mini scores 93/100 (rank #3) compared to GPT-5 Codex's 85/100 (rank #43), giving it a 8-point advantage. GPT-5.4 Mini is the stronger overall choice, though GPT-5 Codex may excel in specific areas like certain benchmarks.
GPT-5.4 Mini is ranked #3 and GPT-5 Codex is ranked #43 out of 290+ AI models. Rankings use a composite score combining benchmark performance (25%), pricing (25%), context window (15%), recency (15%), output capacity (10%), and versatility (10%). Scores update hourly.
GPT-5.4 Mini is cheaper at $4.50/M output tokens vs GPT-5 Codex's $10.00/M output tokens - 2.2x more expensive. Input token pricing: GPT-5.4 Mini at $0.75/M vs GPT-5 Codex at $1.25/M.
GPT-5.4 Mini has a larger context window of 400,000 tokens compared to GPT-5 Codex's 400,000 tokens. A larger context window means the model can process longer documents and conversations.