Mercury 2.5 Preview vs Qwen3 8B
| Signal | Mercury 2.5 Preview | Delta | Qwen3 8B |
|---|---|---|---|
Capabilities | 67 | -- | |
Benchmarks | 60 | 0 | |
Pricing | 100 | +0 | |
Context window size | 86 | +5 | |
Recency | 100 | +57 | |
Output Capacity | 77 | +14 | |
| Overall Result | 4 wins | of 6 | 1 wins |
Score History
61.2
current score
Mercury 2.5 Preview
right now
61
current score
Mercury 2.5 Preview
Inception
Qwen3 8B
Alibaba
Mercury 2.5 Preview saves you $22.95/month
That's $275.40/year compared to Qwen3 8B at your current usage level of 100K calls/month.
| Metric | Mercury 2.5 Preview | Qwen3 8B | Winner |
|---|---|---|---|
| Overall Score | 61 | 61 | Mercury 2.5 Preview |
| Rank | #208 | #209 | Mercury 2.5 Preview |
| Quality Rank | #208 | #209 | Mercury 2.5 Preview |
| Adoption Rank | #208 | #209 | Mercury 2.5 Preview |
| Parameters | -- | 8B | -- |
| Context Window | 260K | 131K | Mercury 2.5 Preview |
| Pricing | $0.04/$0.15/M | $0.12/$0.45/M | -- |
| Signal Scores | |||
| Capabilities | 67 | 67 | Mercury 2.5 Preview |
| Benchmarks | 60 | 60 | Qwen3 8B |
| Pricing | 100 | 100 | Mercury 2.5 Preview |
| Context window size | 86 | 81 | Mercury 2.5 Preview |
| Recency | 100 | 43 | Mercury 2.5 Preview |
| Output Capacity | 77 | 63 | Mercury 2.5 Preview |
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 #208), placing it in the top 29% of all 290 models tracked.
Scores 61/100 (rank #209), placing it in the top 28% of all 290 models tracked.
With only a 0-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.
Choose Mercury 2.5 Preview when you need:
- High-volume production workloads where API costs must be minimized
- Processing long documents or large codebases (260K token context)
- Step-by-step reasoning and chain-of-thought problem solving
Choose Qwen3 8B when you need:
- Step-by-step reasoning and chain-of-thought problem solving
- Self-hosted deployments where you need full control over the model
Mercury 2.5 Preview offers 67% better value per quality point. At 1M tokens/day, you'd spend $2.85/month with Mercury 2.5 Preview vs $8.58/month with Qwen3 8B - a $5.73 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. Mercury 2.5 Preview also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (260K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($0.15/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (61/100) correlates with better nuance, coherence, and style in long-form content
Mercury 2.5 Preview and Qwen3 8B are extremely close in overall performance (only 0.20000000000000284 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
By Use Case
Best for Quality
Mercury 2.5 Preview
Marginally better benchmark scores; both are excellent
Best for Cost
Mercury 2.5 Preview
67% lower pricing; better value at scale
Best for Reliability
Mercury 2.5 Preview
Higher uptime and faster response speeds
Best for Prototyping
Mercury 2.5 Preview
Stronger community support and better developer experience
Best for Production
Mercury 2.5 Preview
Wider enterprise adoption and proven at scale
by Inception
- Choose for Quality - Marginally better benchmark scores; both are excellent
- Choose for Cost - 67% lower pricing; better value at scale
- Choose for Reliability - Higher uptime and faster response speeds
- Choose for Prototyping - Stronger community support and better developer experience
- Choose for Production - Wider enterprise adoption and proven at scale
| Capability | Mercury 2.5 Preview | Qwen3 8B |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Search | ||
| Image Output |
Mercury 2.5 Preview
Inception
Qwen3 8B
Alibaba
Mercury 2.5 Preview saves you $0.5046/month
That's 67% cheaper than Qwen3 8B 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 2.5 Preview | Qwen3 8B |
|---|---|---|
| Context Window | 260K | 131K |
| Max Output Tokens | 65,536 | 8,192 |
| Open Source | No | Yes |
| Created | Aug 31, 2026 | Apr 28, 2025 |