gpt-oss-20b is 23.4× cheaper per million tokens (blended). Grok 4.20 Multi-Agent has the larger context window (2,000,000 vs 131,072 tokens, 15.3×). gpt-oss-20b is open-weights; the other is not.
gpt-oss-20b vs Grok 4.20 Multi-Agent
Live catalog fields. Best-in-row is highlighted.
gpt-oss-20bopen
OpenAI · openai__gpt-oss-20b
Grok 4.20 Multi-Agent
xAI · x-ai__grok-4.20-multi-agent
Identity
| Field | openai__gpt-oss-20b | x-ai__grok-4.20-multi-agent |
|---|---|---|
| Provider | OpenAI | xAI |
| Slug | openai__gpt-oss-20b | x-ai__grok-4.20-multi-agent |
| Status | live | live |
| Open weights | Yes | No |
| License | — | — |
| HuggingFace | openai/gpt-oss-20b | — |
Quality
| Field | openai__gpt-oss-20b | x-ai__grok-4.20-multi-agent |
|---|---|---|
| Quality index (0–100) | — | — |
Cost
| Field | openai__gpt-oss-20b | x-ai__grok-4.20-multi-agent |
|---|---|---|
| Input $ / 1M tokens | $0.03 | $1.25 |
| Cached input $ / 1M | $0.03 | $0.20 |
| Output $ / 1M tokens | $0.13 | $2.50 |
Context
| Field | openai__gpt-oss-20b | x-ai__grok-4.20-multi-agent |
|---|---|---|
| Max context tokens | 131,072 | 2,000,000 |
| Max output tokens | 117,964 | 1,800,000 |
Modalities
| Field | openai__gpt-oss-20b | x-ai__grok-4.20-multi-agent |
|---|---|---|
| Input | text | text, image, file |
| Output | text | text |