token.app › Compare › Grok 4.3 vs Claude Opus 5

Grok 4.3 vs Claude Opus 5

Grok 4.3 is 6.4× cheaper per token on a blended 3:1 basis.

Head to head
Blended price uses a 3:1 input:output mix
Grok 4.3Claude Opus 5
ProviderxAIAnthropic
Input $/1M$1.25$5.00
Output $/1M$2.50$25.00
Blended $/1M$1.56$10.00
Context window1M1M
Max output128K
ReleasedApr 2026Jul 2026
LicenceProprietaryProprietary
Choose Grok 4.3 if…
  • Costs less per token — $1.56 vs $10.00 blended
Choose Claude Opus 5 if…
  • Newer model (released Jul 2026)
FAQ
Which is better, Grok 4.3 or Claude Opus 5?
We do not hold independently-run benchmark scores covering both Grok 4.3 and Claude Opus 5, so we make no quality claim. Their pricing and specifications are compared on this page.
Is Grok 4.3 cheaper than Claude Opus 5?
Grok 4.3 is cheaper: $1.56 versus $10.00 per million tokens blended at 3:1 input:output. Input alone: $1.25 vs $5.00. Output alone: $2.50 vs $25.00.
What context windows do Grok 4.3 and Claude Opus 5 have?
Grok 4.3: 1,000,000 tokens. Claude Opus 5: 1,000,000 tokens.
Who makes Grok 4.3 and Claude Opus 5?
Grok 4.3 is made by xAI. Claude Opus 5 is made by Anthropic.
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