LLM Comparison
GPT-5.4 Nano vs Grok 4.20 Multi-Agent
Side-by-side specs, pricing & capabilities · Updated September 2026
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 38 52.0 | |
| Family | GPT | Grok |
| Status | Current | Current |
| Release Date | Mar 2026 | Mar 2026 |
| Context Window | 400K tokens | 2.0M tokens |
| Input Price | $0.20/M tokens | $2.00/M tokens |
| Output Price | $1.25/M tokens | $6.00/M tokens |
| Pricing Notes | Cache read: $0.0200/M tokens | Cache read: $0.2000/M tokens |
| Capabilities | textvisioncode | textvisioncode |
| Training Cutoff | Aug 31, 2025 | — |
| Max Output | 128K tokens | — |
| API Identifier | openai/gpt-5.4-nano | x-ai/grok-4.20-multi-agent |
| Benchmarks | ||
| Artificial Analysis Intelligence Index v4.3 | 21.2442artificial-analysis | — |
| GPQA Diamond | 81.7172artificial-analysis | — |
| SciCode | 47.2222artificial-analysis | — |
| Terminal-Bench 2.1 | 60.6742artificial-analysis | — |
| View GPT-5.4 Nano | View Grok 4.20 Multi-Agent | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| GPT-5.4 NanoCheapest | $0.20 | $0.63 | $0.83 | — |
| Grok 4.20 Multi-Agent | $2.00 | $3.00 | $5.00 | +506% |
OpenAI
GPT-5.4 Nano
GPT-5.4 Nano is a multimodal llm from OpenAI. Supports up to 400,000 token context window. Available from $0.20/M input tokens.
xAI
Grok 4.20 Multi-Agent
Grok 4.20 Multi-Agent is a multimodal llm from xAI. Supports up to 2,000,000 token context window. Available from $2.00/M input tokens.
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