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Gemini 2.5 Flash vs Qwen3.8 Flash

Gemini 2.5 Flash

Google

79#90
vs
Qwen3.8 Flash

Alibaba

40#256
Signal-by-Signal Comparison
SignalGemini 2.5 FlashDeltaQwen3.8 Flash
Capabilities
100
+17
83
Benchmarks
81
+81
0
Pricing
98
-2
100
Context window size
96
+0
95
Recency
41
-59
100
Output Capacity
77
-5
82
Overall Result
3 wins
of 6
3 wins
It's a tie - both models win 3 signals each

Score History

Score History (38 data points)
Gemini 2.5 FlashQwen3.8 Flash
Gemini 2.5 Flash

79.1

current score

Leader

Gemini 2.5 Flash

right now

Qwen3.8 Flash

40

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

Gemini 2.5 Flash

Google

Per request$0.001550
Daily$5.17
Monthly$155.00
Annual$1860.00

Qwen3.8 Flash

Alibaba

Best Value
Per request$0.000385
Daily$1.28
Monthly$38.50
Annual$462.00

Qwen3.8 Flash saves you $116.50/month

That's $1398.00/year compared to Gemini 2.5 Flash at your current usage level of 100K calls/month.

75% cheaper
Choose Qwen3.8 Flash for cost optimization

Gemini 2.5 Flash pricing:
Input:$0.30/M tokens
Output:$2.50/M tokens
Qwen3.8 Flash pricing:
Input:$0.15/M tokens
Output:$0.47/M tokens
Winner
Gemini 2.5 Flash

Google

79

Composite Score

Qwen3.8 Flash

Alibaba

40

Composite Score

Signal-by-Signal Comparison
MetricGemini 2.5 FlashQwen3.8 FlashWinner
Overall Score
79
40
Gemini 2.5 Flash
Rank#90#256
Gemini 2.5 Flash
Quality Rank#90#256
Gemini 2.5 Flash
Adoption Rank#90#256
Gemini 2.5 Flash
Parameters------
Context Window1049K1000K
Gemini 2.5 Flash
Pricing$0.30/$2.50/M$0.15/$0.47/M--
Signal Scores
Capabilities
100
83
Gemini 2.5 Flash
Benchmarks
81
--
Gemini 2.5 Flash
Pricing
98
100
Qwen3.8 Flash
Context window size
96
95
Gemini 2.5 Flash
Recency
41
100
Qwen3.8 Flash
Output Capacity
77
82
Qwen3.8 Flash
Benchmark Head-to-Head(12 benchmarks)
Gemini 2.5: 0Qwen3.8 Flash: 0
Gemini 2.5
Qwen3.8 Flash
Normalized 0-100%
MMLU
85.8%-
MMLU-Pro
78%-
GPQA Diamond
82.8%-
MATH-500
85.8%-
HumanEval
90%-
SWE-bench Verified
60.4%-
AIME 2024
88%-
IFEval
85.5%-
BBH
85%-
Arena Elo
1395-
LiveBench
66.5%-
HLE
12.08%-
Benchmark Interpretation

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.

Gemini 2.5 FlashStrong Performer

Scores 79/100 (rank #90), placing it in the top 69% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Qwen3.8 FlashEntry Level

Scores 40/100 (rank #256), placing it in the top 12% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

Gemini 2.5 Flash has a 39-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose Gemini 2.5 Flash when you need:

  • Step-by-step reasoning and chain-of-thought problem solving

Choose Qwen3.8 Flash when you need:

  • High-volume production workloads where API costs must be minimized
  • Step-by-step reasoning and chain-of-thought problem solving
  • Self-hosted deployments where you need full control over the model
Cost-Performance Analysis
Gemini 2.5 Flash
Input cost$0.30/M tokens
Output cost$2.50/M tokens
Cost per quality point$0.035
Est. monthly (1M tokens/day)$42.00
Qwen3.8 FlashBest Value
Input cost$0.15/M tokens
Output cost$0.47/M tokens
Cost per quality point$0.015
Est. monthly (1M tokens/day)$9.30

Qwen3.8 Flash offers 78% better value per quality point. At 1M tokens/day, you'd spend $9.30/month with Qwen3.8 Flash vs $42.00/month with Gemini 2.5 Flash - a $32.70 monthly difference.

Latency & Speed
Gemini 2.5 FlashFaster
Speed score0/100
Qwen3.8 Flash
Speed score0/100

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.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

Gemini 2.5 Flash

Customer support chatbot

Suitable for user-facing chat with competitive response times. Qwen3.8 Flash also offers lower per-token costs for high-volume support

Gemini 2.5 Flash

Long document analysis

Larger context window (1049K tokens) can process longer documents, contracts, and research papers in a single pass

Gemini 2.5 Flash

Batch data extraction

Lower output pricing ($0.47/M) reduces costs when processing thousands of records daily

Qwen3.8 Flash

Creative writing & content

Higher overall composite score (79/100) correlates with better nuance, coherence, and style in long-form content

Gemini 2.5 Flash

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

Gemini 2.5 Flash
Which Should You Choose?
Our recommendation:
Gemini 2.5 Flash

Gemini 2.5 Flash clearly outperforms Qwen3.8 Flash with a significant 39.099999999999994-point lead. For most general use cases, Gemini 2.5 Flash is the stronger choice. However, Qwen3.8 Flash may still excel in niche scenarios.

Gemini 2.5 Flash
Recommended

by Google

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • 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

by Alibaba

  • Choose for Cost - 78% lower pricing; better value at scale
Capability Comparison
CapabilityGemini 2.5 FlashQwen3.8 Flash
Vision (Image Input)
Function Calling
Streaming
JSON Mode
Reasoning
Web Searchdiffers
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

Gemini 2.5 Flash

Google

$3.54
estimated monthly cost

Qwen3.8 Flash

Alibaba

Best Value
$0.8340
estimated monthly cost

Qwen3.8 Flash saves you $2.71/month

That's 76% cheaper than Gemini 2.5 Flash 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.

Parameters & Context
ParameterGemini 2.5 FlashQwen3.8 Flash
Context Window1.0M1M
Max Output Tokens65,535131,072
Open SourceNoYes
CreatedJun 17, 2025Aug 26, 2026
Last updated: 35m ago

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