token.app › Compare › Claude Sonnet 4.5 (batch) vs Xing4.0 29B A4B (free)

Claude Sonnet 4.5 (batch) vs Xing4.0 29B A4B (free)

Xing4.0 29B A4B (free) is free to use, against $3.00 per million tokens. Claude Sonnet 4.5 (batch) accepts the larger context window (1M).

Head to head
Blended price uses a 3:1 input:output mix
Claude Sonnet 4.5 (batch)Xing4.0 29B A4B (free)
ProviderAnthropicXingchen agi
Input $/1M$1.50Free
Output $/1M$7.50Free
Blended $/1M$3.00Free
Context window1M262K
Max output64K236K
ReleasedSep 2025Oct 2026
LicenceProprietaryOpen weights
Choose Claude Sonnet 4.5 (batch) if…
  • Larger context window (1M)
Choose Xing4.0 29B A4B (free) if…
  • Costs less per token — Free vs $3.00 blended
  • Open weights — self-hostable
  • Newer model (released Oct 2026)
FAQ
Which is better, Claude Sonnet 4.5 (batch) or Xing4.0 29B A4B (free)?
We do not hold independently-run benchmark scores covering both Claude Sonnet 4.5 (batch) and Xing4.0 29B A4B (free), so we make no quality claim. Their pricing and specifications are compared on this page.
Is Claude Sonnet 4.5 (batch) cheaper than Xing4.0 29B A4B (free)?
Xing4.0 29B A4B (free) is cheaper: Free versus $3.00 per million tokens blended at 3:1 input:output. Input alone: $1.50 vs Free. Output alone: $7.50 vs Free.
What context windows do Claude Sonnet 4.5 (batch) and Xing4.0 29B A4B (free) have?
Claude Sonnet 4.5 (batch): 1,000,000 tokens. Xing4.0 29B A4B (free): 262,144 tokens.
Who makes Claude Sonnet 4.5 (batch) and Xing4.0 29B A4B (free)?
Claude Sonnet 4.5 (batch) is made by Anthropic. Xing4.0 29B A4B (free) is made by Xingchen agi.
Related comparisons
Claude Sonnet 4.5 (batch) full details Xing4.0 29B A4B (free) full details Claude Sonnet 4.5 (batch) vs Flint (free) Claude Sonnet 4.5 (batch) vs MiniMax M3.1 Flash (free) Claude Sonnet 4.5 (batch) vs DeepSeek V4.1 Flash 1017 Claude Sonnet 4.5 (batch) vs Glimpse Claude Sonnet 4.5 (batch) vs Beam 1.0 501B A23B Claude Sonnet 4.5 (batch) vs Mercury 3