| Signal | Mercury 2 | Delta | o3 Mini High |
|---|---|---|---|
Capabilities | 67 | -- | |
Benchmarks | 60 | -2 | |
Pricing | 99 | +4 | |
Context window size | 81 | -3 | |
Recency | 100 | +44 | |
Output Capacity | 78 | -5 | |
| Overall Result | 2 wins | of 6 | 3 wins |
Score History
61
current score
o3 Mini High
right now
63.1
current score
Inception
OpenAI
Mercury 2 saves you $267.50/month
That's $3210.00/year compared to o3 Mini High at your current usage level of 100K calls/month.
| Metric | Mercury 2 | o3 Mini High | Winner |
|---|---|---|---|
| Overall Score | 61 | 63 | o3 Mini High |
| Rank | #133 | #131 | o3 Mini High |
| Quality Rank | #133 | #131 | o3 Mini High |
| Adoption Rank | #133 | #131 | o3 Mini High |
| Parameters | -- | -- | -- |
| Context Window | 128K | 200K | o3 Mini High |
| Pricing | $0.25/$0.75/M | $1.10/$4.40/M | -- |
| Signal Scores | |||
| Capabilities | 67 | 67 | Mercury 2 |
| Benchmarks | 60 | 62 | o3 Mini High |
| Pricing | 99 | 96 | Mercury 2 |
| Context window size | 81 | 84 | o3 Mini High |
| Recency | 100 | 56 | Mercury 2 |
| Output Capacity | 78 | 83 | o3 Mini High |
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 61/100 (rank #133), placing it in the top 54% of all 290 models tracked.
Scores 63/100 (rank #131), placing it in the top 55% of all 290 models tracked.
With only a 2-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.
Mercury 2 offers 82% better value per quality point. At 1M tokens/day, you'd spend $15.00/month with Mercury 2 vs $82.50/month with o3 Mini High - a $67.50 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. Mercury 2 also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (200K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($0.75/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (63/100) correlates with better nuance, coherence, and style in long-form content
Mercury 2 and o3 Mini High are extremely close in overall performance (only 2.1000000000000014 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
Best for Quality
Mercury 2
Marginally better benchmark scores; both are excellent
Best for Cost
Mercury 2
82% lower pricing; better value at scale
Best for Reliability
Mercury 2
Higher uptime and faster response speeds
Best for Prototyping
Mercury 2
Stronger community support and better developer experience
Best for Production
Mercury 2
Wider enterprise adoption and proven at scale
by Inception
| Capability | Mercury 2 | o3 Mini High |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Search | ||
| Image Output |
Inception
OpenAI
Mercury 2 saves you $5.91/month
That's 81% cheaper than o3 Mini High 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 | Mercury 2 | o3 Mini High |
|---|---|---|
| Context Window | 128K | 200K |
| Max Output Tokens | 50,000 | 100,000 |
| Open Source | No | No |
| Created | Mar 4, 2026 | Feb 12, 2025 |