Claude Opus 4.6 vs Claude Mythos 5.1: Pricing Comparison

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

Anthropic

Claude Opus 4.6

Pricing (per 1M tokens)

Input$5.00
Output$25.00
Cached Input$0.5000
Batch Input$2.50
Batch Output$12.50

Context & Output

Context Window200K tokens
Max Output128K tokens

Capabilities

Categoryflagship
Multimodaltext + image
Fine-tuningNo
StreamingYes

Anthropic

Claude Mythos 5.1

Pricing (per 1M tokens)

Input$10.00
Output$50.00
Cached Input$0.2500
Batch Input$5.00
Batch Output$25.00

Context & Output

Context Window200K tokens
Max Output64K tokens

Capabilities

Categoryflagship
Multimodaltext + image
Fine-tuningNo
StreamingYes

Quick Verdict

Cheaper Input Price

Claude Opus 4.6

50.0% cheaper

Cheaper Output Price

Claude Opus 4.6

50.0% cheaper

Larger Context Window

Claude Mythos 5.1

+0 tokens

Cost Comparison

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

Claude Opus 4.6

$30.00

$5.00/1M input + $25.00/1M output

Claude Mythos 5.1

$60.00

$10.00/1M input + $50.00/1M output

Claude Opus 4.6 is 50.0% cheaper for this workload.

Frequently Asked Questions

Which is cheaper, Claude Opus 4.6 or Claude Mythos 5.1?
For input tokens, Claude Opus 4.6 is cheaper at $5.00 per 1M tokens. For output tokens, Claude Opus 4.6 is cheaper at $25.00 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of Claude Opus 4.6 vs Claude Mythos 5.1?
Claude Opus 4.6 has a context window of 200K tokens, while Claude Mythos 5.1 has 200K tokens. Claude Opus 4.6 supports a larger context window of 200K tokens, which is beneficial for processing longer documents.
How do Claude Opus 4.6 and Claude Mythos 5.1 compare for batch processing?
Both models support batch processing with discounted rates. Claude Opus 4.6 offers a better batch rate at $2.50 per 1M input tokens. Batch processing is ideal for non-time-sensitive workloads where you can wait for processing.

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