Grok 4.3 vs Claude Opus 5.5: Pricing Comparison

Compare pricing, capabilities, and costs for your LLM workloads.

xAI

Grok 4.3

Pricing (per 1M tokens)

Input$1.25
Output$2.50
Cached Input$0.2000

Context & Output

Context Window1M tokens
Max Output32.8K tokens

Capabilities

Categoryflagship
Multimodaltext + image
Fine-tuningNo
StreamingYes

Anthropic

Claude Opus 5.5

Pricing (per 1M tokens)

Input$4.00
Output$20.00
Cached Input$0.2000
Batch Input$2.00
Batch Output$10.00

Context & Output

Context Window1M tokens
Max Output128K tokens

Capabilities

Categoryflagship
Multimodaltext + image
Fine-tuningNo
StreamingYes

Quick Verdict

Cheaper Input Price

Grok 4.3

68.8% cheaper

Cheaper Output Price

Grok 4.3

87.5% cheaper

Larger Context Window

Claude Opus 5.5

+0 tokens

Cost Comparison

Sample workload: 1,000,000 input tokens + 1,000,000 output tokens

Grok 4.3

$3.75

$1.25/1M input + $2.50/1M output

Claude Opus 5.5

$24.00

$4.00/1M input + $20.00/1M output

Grok 4.3 is 84.4% cheaper for this workload.

Frequently Asked Questions

Which is cheaper, Grok 4.3 or Claude Opus 5.5?
For input tokens, Grok 4.3 is cheaper at $1.25 per 1M tokens. For output tokens, Grok 4.3 is cheaper at $2.50 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of Grok 4.3 vs Claude Opus 5.5?
Grok 4.3 has a context window of 1M tokens, while Claude Opus 5.5 has 1M tokens. Grok 4.3 supports a larger context window of 1M tokens, which is beneficial for processing longer documents.

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