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

Pricing verified Apr 8, 2026

⚡ Quick Answer

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

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureGrok 3InternLM 2.5 20B
ProviderxAIShanghai AI Lab
Input Price / 1M tokens$2.50$0.180
Output Price / 1M tokens$12.50$0.180
Context Window
200K
32K
Max Output Tokens
8,192
4,096
Arena ELO
1,285
1,155
Coding ELO
1,280
1,150
TTFT (ms)
200
150
Tokens/sec
90
100
MultimodalNoNo
JSON ModeYesYes
Function CallingYesYes
VisionNoNo
When to Use Grok 3

Grok 3 excels at general-purpose, coding, reasoning tasks.

Strengths:

  • Latest xAI model
  • Strong reasoning
  • Large context

Best for:

general-purposecodingreasoning
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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