Compare · ModelsLive · 2 picked · head to head

DeepSeek V4 Flash vs Grok 4.3

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

Winner summary

DeepSeek V4 Flash wins 7 of 12 shared benchmarks. Leads in speed · coding · reasoning.

Category leads
speed·DeepSeek V4 Flasharena·Grok 4.3coding·DeepSeek V4 Flashreasoning·DeepSeek V4 Flashlanguage·DeepSeek V4 Flashmath·Grok 4.3knowledge·DeepSeek V4 Flash
Hype vs Reality
DeepSeek V4 Flash
#31 by perf·no signal
QUIET
Grok 4.3
#32 by perf·no signal
QUIET
Best value
15.0x better value than Grok 4.3
DeepSeek V4 Flash
533.3 pts/$
$0.13/M
Grok 4.3
35.6 pts/$
$1.88/M
Vendor risk
One or more vendors flagged
DeepSeek logo
DeepSeek
$3.4B·Tier 1
Higher risk
xAI logo
xAI
$250.0B·Tier 1
Medium risk
Head to head
DeepSeek V4 FlashGrok 4.3
Artificial Analysis · Agentic Index
DeepSeek V4 Flash leads by +7.0
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
Grok 4.3
24.1
Artificial Analysis · Coding Index
DeepSeek V4 Flash leads by +13.9
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
Grok 4.3
42.3
Artificial Analysis · Quality Index
DeepSeek V4 Flash leads by +2.7
DeepSeek V4 Flash
40.3
Grok 4.3
37.6
Chatbot Arena Elo · Overall
Grok 4.3 leads by +10.2
DeepSeek V4 Flash
1433.8
Grok 4.3
1444.0
LiveBench · Agentic Coding
DeepSeek V4 Flash
50.0
Grok 4.3
50.0
LiveBench · Coding
Grok 4.3 leads by +0.7
DeepSeek V4 Flash
69.2
Grok 4.3
69.9
LiveBench · Data Analysis
DeepSeek V4 Flash leads by +12.2
DeepSeek V4 Flash
68.0
Grok 4.3
55.8
LiveBench · If
DeepSeek V4 Flash leads by +0.4
DeepSeek V4 Flash
63.1
Grok 4.3
62.8
LiveBench · Language
Grok 4.3 leads by +3.5
DeepSeek V4 Flash
70.1
Grok 4.3
73.6
LiveBench · Mathematics
Grok 4.3 leads by +4.7
DeepSeek V4 Flash
79.7
Grok 4.3
84.3
LiveBench · Overall
DeepSeek V4 Flash leads by +0.5
DeepSeek V4 Flash
67.3
Grok 4.3
66.7
LiveBench · Reasoning
Grok 4.3 leads by +0.2
DeepSeek V4 Flash
70.6
Grok 4.3
70.8
Full benchmark table
BenchmarkDeepSeek V4 FlashGrok 4.3
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?"
31.124.1
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.
56.242.3
Artificial Analysis · Quality Index
40.337.6
Chatbot Arena Elo · Overall
1433.81444.0
LiveBench · Agentic Coding
50.050.0
LiveBench · Coding
69.269.9
LiveBench · Data Analysis
68.055.8
LiveBench · If
63.162.8
LiveBench · Language
70.173.6
LiveBench · Mathematics
79.784.3
LiveBench · Overall
67.366.7
LiveBench · Reasoning
70.670.8
Pricing · per 1M tokens · projected $/mo at 10M tokens
ModelInputOutputContextProjected $/mo
DeepSeek logoDeepSeek V4 Flash$0.08$0.171.0M tokens (~524 books)$1.05
xAI logoGrok 4.3$1.25$2.501.0M tokens (~500 books)$15.63