| Signal | GPT-4o-mini (2024-07-18) | Delta | gpt-oss-20b |
|---|---|---|---|
Capabilities | 67 | -- | |
Benchmarks | 55 | 0 | |
Pricing | 99 | 0 | |
Context window size | 73 | 0 | |
Recency | 9 | -70 | |
Output Capacity | 70 | -15 | |
| Overall Result | 0 wins | of 6 | 5 wins |
Score History
56.1
current score
gpt-oss-20b
right now
57.1
current score
OpenAI
OpenAI
gpt-oss-20b saves you $35.00/month
That's $420.00/year compared to GPT-4o-mini (2024-07-18) at your current usage level of 100K calls/month.
| Metric | GPT-4o-mini (2024-07-18) | gpt-oss-20b | Winner |
|---|---|---|---|
| Overall Score | 56 | 57 | gpt-oss-20b |
| Rank | #157 | #155 | gpt-oss-20b |
| Quality Rank | #157 | #155 | gpt-oss-20b |
| Adoption Rank | #157 | #155 | gpt-oss-20b |
| Parameters | -- | 20B | -- |
| Context Window | 128K | 131K | gpt-oss-20b |
| Pricing | $0.15/$0.60/M | $0.03/$0.14/M | -- |
| Signal Scores | |||
| Capabilities | 67 | 67 | GPT-4o-mini (2024-07-18) |
| Benchmarks | 55 | 56 | gpt-oss-20b |
| Pricing | 99 | 100 | gpt-oss-20b |
| Context window size | 73 | 73 | gpt-oss-20b |
| Recency | 9 | 79 | gpt-oss-20b |
| Output Capacity | 70 | 85 | gpt-oss-20b |
Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.
Scores 56/100 (rank #157), placing it in the top 46% of all 290 models tracked.
Scores 57/100 (rank #155), placing it in the top 47% of all 290 models tracked.
With only a 1-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.
gpt-oss-20b offers 77% better value per quality point. At 1M tokens/day, you'd spend $2.55/month with gpt-oss-20b vs $11.25/month with GPT-4o-mini (2024-07-18) - a $8.70 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
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. gpt-oss-20b also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (131K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($0.14/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (57/100) 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-4o-mini (2024-07-18) and gpt-oss-20b are extremely close in overall performance (only 1 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
Best for Quality
GPT-4o-mini (2024-07-18)
Marginally better benchmark scores; both are excellent
Best for Cost
gpt-oss-20b
77% lower pricing; better value at scale
Best for Reliability
GPT-4o-mini (2024-07-18)
Higher uptime and faster response speeds
Best for Prototyping
GPT-4o-mini (2024-07-18)
Stronger community support and better developer experience
Best for Production
GPT-4o-mini (2024-07-18)
Wider enterprise adoption and proven at scale
by OpenAI
| Capability | GPT-4o-mini (2024-07-18) | gpt-oss-20b |
|---|---|---|
| Vision (Image Input)differs | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoningdiffers | ||
| Web Search | ||
| Image Output |
OpenAI
OpenAI
gpt-oss-20b saves you $0.7680/month
That's 78% cheaper than GPT-4o-mini (2024-07-18) 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-4o-mini (2024-07-18) | gpt-oss-20b |
|---|---|---|
| Context Window | 128K | 131K |
| Max Output Tokens | 16,384 | 131,072 |
| Open Source | No | Yes |
| Created | Jul 18, 2024 | Aug 5, 2025 |