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DeepSeek V3 vs Grok Code Fast 1

Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.

DeepSeek V3

36

VS

Grok Code Fast 1

40

0 categoriesvs1 categories

Pick Grok Code Fast 1 if you want the stronger benchmark profile. DeepSeek V3 only becomes the better choice if you want the cheaper token bill.

Category Radar

Head-to-Head by Category

Category Breakdown

Coding

Grok Code Fast 1
39.2vs70.8

+31.6 difference

Operational Comparison

DeepSeek V3

Grok Code Fast 1

Price (per 1M tokens)

$0.27 / $1.1

$0.2 / $1.5

Speed

N/A

172 t/s

Latency (TTFT)

N/A

2.81s

Context Window

128K

256K

Quick Verdict

Pick Grok Code Fast 1 if you want the stronger benchmark profile. DeepSeek V3 only becomes the better choice if you want the cheaper token bill.

Grok Code Fast 1 is clearly ahead on the provisional aggregate, 40 to 36. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Grok Code Fast 1's sharpest advantage is in coding, where it averages 70.8 against 39.2. The single biggest benchmark swing on the page is SWE-bench Verified, 42% to 70.8%.

Grok Code Fast 1 is also the more expensive model on tokens at $0.20 input / $1.50 output per 1M tokens, versus $0.27 input / $1.10 output per 1M tokens for DeepSeek V3. Grok Code Fast 1 gives you the larger context window at 256K, compared with 128K for DeepSeek V3.

Benchmark Deep Dive

Frequently Asked Questions (2)

Which is better, DeepSeek V3 or Grok Code Fast 1?

Grok Code Fast 1 is ahead on BenchLM's provisional leaderboard, 40 to 36. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 42% and 70.8%.

Which is better for coding, DeepSeek V3 or Grok Code Fast 1?

Grok Code Fast 1 has the edge for coding in this comparison, averaging 70.8 versus 39.2. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.

Self-host vs API cost

Estimates at 50,000 req/day · 1000 tokens/req average.

DeepSeek V3
API / mo$1,028
Self-host / mo$18,221
Break-even1.2B/day
Grok Code Fast 1
API / mo$1,275
Self-host / moN/A
Break-even
Proprietary model — self-hosting not applicable.
Model the full break-even

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Last updated: May 1, 2026

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