token.app › Compare › GPT-6.1 Sol Pro (batch) vs Xing4.0 29B A4B (free)

GPT-6.1 Sol Pro (batch) vs Xing4.0 29B A4B (free)

Xing4.0 29B A4B (free) is free to use, against $2.00 per million tokens. GPT-6.1 Sol Pro (batch) accepts the larger context window (1.1M).

Head to head
Blended price uses a 3:1 input:output mix
GPT-6.1 Sol Pro (batch)Xing4.0 29B A4B (free)
ProviderOpenAIXingchen agi
Input $/1M$1.00Free
Output $/1M$5.00Free
Blended $/1M$2.00Free
Context window1.1M262K
Max output128K236K
ReleasedSep 2026Oct 2026
LicenceProprietaryOpen weights
Choose GPT-6.1 Sol Pro (batch) if…
  • Larger context window (1.1M)
Choose Xing4.0 29B A4B (free) if…
  • Costs less per token — Free vs $2.00 blended
  • Open weights — self-hostable
  • Newer model (released Oct 2026)
FAQ
Which is better, GPT-6.1 Sol Pro (batch) or Xing4.0 29B A4B (free)?
We do not hold independently-run benchmark scores covering both GPT-6.1 Sol Pro (batch) and Xing4.0 29B A4B (free), so we make no quality claim. Their pricing and specifications are compared on this page.
Is GPT-6.1 Sol Pro (batch) cheaper than Xing4.0 29B A4B (free)?
Xing4.0 29B A4B (free) is cheaper: Free versus $2.00 per million tokens blended at 3:1 input:output. Input alone: $1.00 vs Free. Output alone: $5.00 vs Free.
What context windows do GPT-6.1 Sol Pro (batch) and Xing4.0 29B A4B (free) have?
GPT-6.1 Sol Pro (batch): 1,050,000 tokens. Xing4.0 29B A4B (free): 262,144 tokens.
Who makes GPT-6.1 Sol Pro (batch) and Xing4.0 29B A4B (free)?
GPT-6.1 Sol Pro (batch) is made by OpenAI. Xing4.0 29B A4B (free) is made by Xingchen agi.
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