gpt-oss-20b vs Xing4.0-29B-A4B
Specs, VRAM requirements and download trends — updated 25 October 2026.
openai · A · Open weights
Params
21.5 B
Context
131,072
30d
5.8 M
apache-2.0 · commercial OK
XingChen-AGI · B · Open weights
Params
31.2 B
Context
262,144
30d
13 K
apache-2.0 · commercial OK
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | gpt-oss-20b | Xing4.0-29B-A4B |
|---|---|---|
| Deployment | Open weights · also via API | Open weights · also via API |
| Parameters | 21.5 B | 31.2 B |
| Architecture | GptOssForCausalLM | Xing4_0ForCausalLM |
| Context length | 131,072 | 262,144 |
| Licence | apache-2.0 | apache-2.0 |
| Commercial use | Allowed | Allowed |
| Languages | — | — |
| Downloads 30d | 5,764,154 | 12,905 |
| Downloads all time | 105.3 M | 54 K |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | No |
| First seen on the Hub | 2025-08-04 | 2026-09-16 |
| API input price / 1M tokens | $0.018 | Free |
| API output price / 1M tokens | $0.09 | Free |
| Est. cost per 1M input + 1M output tokens | $0.11 | Free |
| Cached input / 1M tokens | $0.009 | — |
| AA Intelligence Index | 10 | — |
| AA Coding Index | — | — |
| AA Agentic Index | — | — |
| Max output tokens | 32,768 | 235,929 |
| API providers | 10 | — |
| Tool calling | Yes | Yes |
| Reasoning mode | Yes | Yes |
API cost
Estimated cost of 1M input + 1M output tokens via OpenRouter
gpt-oss-20b
$0.11
Xing4.0-29B-A4B
Free
Download trend
Daily snapshots, last 90 days (28 Jul – 25 Oct)
8.6 M13 K
gpt-oss-20b
Xing4.0-29B-A4B
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
gpt-oss-20b · fp16 @ 128K ctx
82.4 GB / 24 GB
Xing4.0-29B-A4B · fp16 @ 256K ctx
219.0 GB / 24 GB