Compare OpenAI: GPT-5.4 (OpenAI) and SpaceXAI: Grok 4.20 Multi-Agent (OpenRouter) by price, context, capabilities, and latency.
Side by side
Compare price, provider, context, capabilities, latency, and source basis.
| Model | Provider | Input | Output | Context | Capabilities | Best for | Latency | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| OpenAI: GPT-5.4openai/gpt-5.4 | OpenAI | $0.47 / 1M tokens | $2.82 / 1M tokens | 1.1M | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 1000-3000ms | Catalog | Platform curated |
| SpaceXAI: Grok 4.20 Multi-Agentx-ai/grok-4.20-multi-agent | OpenRouter | $0.236 / 1M tokens | $0.47 / 1M tokens | 2M | StreamingJSON modeVisionLong context | image understanding, multimodal chat | 1000-3000ms | Catalog | Platform curated |
FAQ
SpaceXAI: Grok 4.20 Multi-Agent is cheaper ($0.236 / 1M tokens input / $0.47 / 1M tokens output) vs OpenAI: GPT-5.4 ($0.47 / 1M tokens input / $2.82 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.
SpaceXAI: Grok 4.20 Multi-Agent is larger (2M tokens) vs 1.1M tokens.
Both target Vision. Pick SpaceXAI: Grok 4.20 Multi-Agent to optimize cost, or SpaceXAI: Grok 4.20 Multi-Agent for the longer context window. Test both on real prompts before committing production traffic.