token.app › Compare › Xing4.0 29B A4B (free) vs Claude Opus 5

Xing4.0 29B A4B (free) vs Claude Opus 5

Xing4.0 29B A4B (free) is free to use, against $10.00 per million tokens. Claude Opus 5 accepts the larger context window (1M).

Head to head
Blended price uses a 3:1 input:output mix
Xing4.0 29B A4B (free)Claude Opus 5
ProviderXingchen agiAnthropic
Input $/1MFree$5.00
Output $/1MFree$25.00
Blended $/1MFree$10.00
Context window262K1M
Max output236K128K
ReleasedOct 2026Jul 2026
LicenceOpen weightsProprietary
Choose Xing4.0 29B A4B (free) if…
  • Costs less per token — Free vs $10.00 blended
  • Open weights — self-hostable
  • Newer model (released Oct 2026)
Choose Claude Opus 5 if…
  • Larger context window (1M)
FAQ
Which is better, Xing4.0 29B A4B (free) or Claude Opus 5?
We do not hold independently-run benchmark scores covering both Xing4.0 29B A4B (free) and Claude Opus 5, so we make no quality claim. Their pricing and specifications are compared on this page.
Is Xing4.0 29B A4B (free) cheaper than Claude Opus 5?
Xing4.0 29B A4B (free) is cheaper: Free versus $10.00 per million tokens blended at 3:1 input:output. Input alone: Free vs $5.00. Output alone: Free vs $25.00.
What context windows do Xing4.0 29B A4B (free) and Claude Opus 5 have?
Xing4.0 29B A4B (free): 262,144 tokens. Claude Opus 5: 1,000,000 tokens.
Who makes Xing4.0 29B A4B (free) and Claude Opus 5?
Xing4.0 29B A4B (free) is made by Xingchen agi. Claude Opus 5 is made by Anthropic.
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