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Grok 3-mini vs InternLM 2.5 20B: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare Grok 3-mini and InternLM 2.5 20B across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGrok 3-miniInternLM 2.5 20B
ProviderxAIShanghai AI Lab
Input Price / 1M tokens$0.200$0.180
Output Price / 1M tokens$0.800$0.180
Context Window
128K
32K
Max Output Tokens
4,096
4,096
Arena ELO
1,175
1,155
Coding ELO
1,190
1,150
TTFT (ms)
130
150
Tokens/sec
140
100
MultimodalNoNo
JSON ModeYesYes
Function CallingYesYes
VisionNoNo
When to Use Grok 3-mini

Grok 3-mini excels at cost-effective, general-purpose tasks.

Strengths:

  • Very cheap
  • Fast
  • Large context

Best for:

cost-effectivegeneral-purpose
When to Use InternLM 2.5 20B

InternLM 2.5 20B excels at cost-effective, general-purpose tasks.

Strengths:

  • Very affordable
  • Good instruction following
  • Fast

Best for:

cost-effectivegeneral-purpose

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