Compare · ModelsLive · 2 picked · head to head

DeepSeek V4 Flash vs Gemini 2.5 Pro

Side by side · benchmarks, pricing, and signals you can act on.

Winner summary

DeepSeek V4 Flash wins 4 of 8 shared benchmarks. Leads in speed · general.

Category leads
speed·DeepSeek V4 Flasharena·Gemini 2.5 Progeneral·DeepSeek V4 Flashreasoning·Gemini 2.5 Procoding·Gemini 2.5 Pro
Hype vs Reality
DeepSeek V4 Flash
#39 by perf·#6 by attention
DESERVED
Gemini 2.5 Pro
#116 by perf·no signal
QUIET
Best value
10.5x better value than Gemini 2.5 Pro
DeepSeek V4 Flash
94.4 pts/$
$0.65/M
Gemini 2.5 Pro
9.0 pts/$
$5.63/M
Vendor risk
One or more vendors flagged
DeepSeek logo
DeepSeek
$3.4B·Tier 1
Higher risk
Google DeepMind logo
Google DeepMind
$4.20T·Tier 1
Low risk
Head to head
DeepSeek V4 FlashGemini 2.5 Pro
Artificial Analysis · Agentic Index
Gemini 2.5 Pro leads by +1.6
Artificial Analysis Agentic Index · a composite score measuring how well a model performs in agentic workflows · multi-step tool use, planning, error recovery, and autonomous task completion. Aggregates results from multiple agentic benchmarks including SWE-bench, tool-use tests, and planning evaluations. The canonical single-number metric for "how good is this model as an agent?"
DeepSeek V4 Flash
31.1
Gemini 2.5 Pro
32.7
Artificial Analysis · Coding Index
DeepSeek V4 Flash leads by +24.2
Artificial Analysis Coding Index · a composite score that aggregates performance across multiple coding benchmarks into a single index. Tracks code generation quality, debugging ability, multi-language competence, and real-world software engineering tasks. Used by Artificial Analysis to rank model coding capability in a normalized, comparable format. Useful for developers choosing between models for coding-heavy workloads.
DeepSeek V4 Flash
56.2
Gemini 2.5 Pro
31.9
Artificial Analysis · Quality Index
DeepSeek V4 Flash leads by +13.3
DeepSeek V4 Flash
40.3
Gemini 2.5 Pro
27.0
Chatbot Arena Elo · Overall
Gemini 2.5 Pro leads by +9.5
DeepSeek V4 Flash
1436.0
Gemini 2.5 Pro
1445.6
Dtbench
DeepSeek V4 Flash leads by +6.7
DeepSeek V4 Flash
77.3
Gemini 2.5 Pro
70.7
Lmca
DeepSeek V4 Flash leads by +1.3
DeepSeek V4 Flash
42.2
Gemini 2.5 Pro
40.9
SimpleBench
Gemini 2.5 Pro leads by +19.3
SimpleBench · tests fundamental reasoning capabilities with straightforward problems designed to expose gaps in basic logical and spatial thinking.
DeepSeek V4 Flash
35.6
Gemini 2.5 Pro
54.9
WeirdML
Gemini 2.5 Pro leads by +8.4
WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns.
DeepSeek V4 Flash
45.6
Gemini 2.5 Pro
54.0
Full benchmark table
BenchmarkDeepSeek V4 FlashGemini 2.5 Pro
Artificial Analysis · Agentic Index
Artificial Analysis Agentic Index · a composite score measuring how well a model performs in agentic workflows · multi-step tool use, planning, error recovery, and autonomous task completion. Aggregates results from multiple agentic benchmarks including SWE-bench, tool-use tests, and planning evaluations. The canonical single-number metric for "how good is this model as an agent?"
31.132.7
Artificial Analysis · Coding Index
Artificial Analysis Coding Index · a composite score that aggregates performance across multiple coding benchmarks into a single index. Tracks code generation quality, debugging ability, multi-language competence, and real-world software engineering tasks. Used by Artificial Analysis to rank model coding capability in a normalized, comparable format. Useful for developers choosing between models for coding-heavy workloads.
56.231.9
Artificial Analysis · Quality Index
40.327.0
Chatbot Arena Elo · Overall
1436.01445.6
Dtbench
77.370.7
Lmca
42.240.9
SimpleBench
SimpleBench · tests fundamental reasoning capabilities with straightforward problems designed to expose gaps in basic logical and spatial thinking.
35.654.9
WeirdML
WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns.
45.654.0
Pricing · per 1M tokens · projected $/mo at 10M tokens
ModelInputOutputContextProjected $/mo
DeepSeek logoDeepSeek V4 Flash$0.03$1.281.0M tokens (~524 books)$3.39
Google DeepMind logoGemini 2.5 Pro$1.25$10.001.0M tokens (~524 books)$34.38