token.app › Compare › Xing4.0 29B A4B (free) vs Mercury 3

Xing4.0 29B A4B (free) vs Mercury 3

Xing4.0 29B A4B (free) is free to use, against $0.163 per million tokens. Mercury 3 accepts the larger context window (1M).

Head to head
Blended price uses a 3:1 input:output mix
Xing4.0 29B A4B (free)Mercury 3
ProviderXingchen agiInception
Input $/1MFree$0.100
Output $/1MFree$0.350
Blended $/1MFree$0.163
Context window262K1M
Max output236K131K
ReleasedOct 2026Oct 2026
LicenceOpen weightsProprietary
Choose Xing4.0 29B A4B (free) if…
  • Costs less per token — Free vs $0.163 blended
  • Open weights — self-hostable
  • Newer model (released Oct 2026)
Choose Mercury 3 if…
  • Larger context window (1M)
FAQ
Which is better, Xing4.0 29B A4B (free) or Mercury 3?
We do not hold independently-run benchmark scores covering both Xing4.0 29B A4B (free) and Mercury 3, so we make no quality claim. Their pricing and specifications are compared on this page.
Is Xing4.0 29B A4B (free) cheaper than Mercury 3?
Xing4.0 29B A4B (free) is cheaper: Free versus $0.163 per million tokens blended at 3:1 input:output. Input alone: Free vs $0.100. Output alone: Free vs $0.350.
What context windows do Xing4.0 29B A4B (free) and Mercury 3 have?
Xing4.0 29B A4B (free): 262,144 tokens. Mercury 3: 1,000,000 tokens.
Who makes Xing4.0 29B A4B (free) and Mercury 3?
Xing4.0 29B A4B (free) is made by Xingchen agi. Mercury 3 is made by Inception.
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