Command A vs Grok 4
Cohere · Global | xAI · US · Updated June 2026
Quick verdict
Pick Command A for enterprise rag and retrieval or strong long-context retrieval accuracy. Pick Grok 4 for 256k context with native tool use or real-time data via x integration. Choose Command A if you need self-hosting or data privacy; Grok 4 if you want a managed API.
Command A (Cohere) and Grok 4 (xAI) are two of the models people most often weigh against each other in 2026. Command A is cohere's enterprise-focused model built for retrieval-augmented and grounded workloads. Grok 4 is xAI's 2M-context model with live data access and strong reasoning chops. They diverge most on price and open vs. closed weights — each quantified below from the models' real specs.
Key differences at a glance
- ▸Price: nearly identical — $2.5/$10 per 1M tokens vs $3/$15 per 1M tokens. Cost will not be the deciding factor here.
- ▸Context window: both advertise 256K (~384 pages). Tie on paper — test on your own long inputs, since usable recall varies by model.
- ▸Recency: Grok 4 is the newer model by about 4 months (released July 9, 2025), usually meaning fresher training data and capabilities.
Side-by-side specs
| Spec | Command A | Grok 4 |
|---|---|---|
| Provider | Cohere (Global) | xAI (US) |
| Released | March 2025 | July 9, 2025 |
| Context window | 256K (~384 pages) | 256K (~384 pages) |
| Price (in/out) | $2.5/$10 per 1M tokens | $3/$15 per 1M tokens |
| Open weight? | Yes — self-hostable | No — API only |
| Modalities | text, code | text, image, code |
| SWE-Bench Verified | Not published | Not published |
| MRCR v2 @ 1M | Not published | Not published |
Who wins what
Enterprise RAG and retrieval
Command A
Cohere's enterprise-focused model built for retrieval-augmented and grounded workloads — and it runs cheaper at $2.5/$10 per 1M tokens.
Strong long-context retrieval accuracy
Command A
Cohere's enterprise-focused model built for retrieval-augmented and grounded workloads — and its weights are open while Grok 4 is API-only.
Multilingual
Command A
Command A lists multilingual among its strengths; Grok 4 does not.
256K context with native tool use
Grok 4
XAI's 2M-context model with live data access and strong reasoning chops — and it is the newer of the two.
Real-time data via X integration
Grok 4
Grok 4 lists real-time data via X integration among its strengths; Command A does not.
Strong academic reasoning
Grok 4
Grok 4 lists strong academic reasoning among its strengths; Command A does not.
Lowest cost at scale
Command A
At $2.5/$10 per 1M tokens, it is the cheaper of the two — the gap dominates the bill on high-volume workloads.
Which should you pick?
A cost-sensitive startup shipping high volume
→ Command A
At $2.5/$10 per 1M tokens it undercuts Grok 4, and on millions of tokens that margin decides the monthly bill.
A team with data-privacy or self-hosting needs
→ Command A
Open weights let you run it on your own hardware; Grok 4 is API-only.
Anyone whose priority is enterprise rag and retrieval
→ Command A
It is specifically built for that.
Anyone whose priority is 256k context with native tool use
→ Grok 4
That is its strongest area.
Command A: where it fits
Cohere's enterprise-focused model built for retrieval-augmented and grounded workloads. Released March 2025 by Cohere, it is built for enterprise RAG and retrieval, strong long-context retrieval accuracy, multilingual, and tool use.
Its trade-offs are real: less consumer presence, and narrower modality support. At $2.5 in / $10 out per million tokens, it sits in the mid price band.
Grok 4: where it fits
XAI's 2M-context model with live data access and strong reasoning chops. Released July 9, 2025 by xAI, it is built for 256K context with native tool use, real-time data via X integration, strong academic reasoning, and no long-context surcharge.
Its trade-offs: smaller ecosystem than OpenAI/Google, and less independent benchmark coverage. At $3 in / $15 out per million tokens, it sits in the mid price band.
The bottom line for this matchup
The defining split here is open vs. closed. Command A gives you weights you control — self-host it, fine-tune it, keep data in-house, pay only for hardware. Grok 4 gives you a managed, always-updated API with no infrastructure to run. Teams with GPUs, privacy requirements, or huge volume often favour the open model; teams that want zero ops and the latest capabilities favour the closed one. Capability is close enough that this operational question, not the benchmark, usually decides it.
Want both Command A and Grok 4 without two subscriptions? LumiChats gives you these plus 40+ models under one ₹69/day pass (about $1/day) — draft with one, cross-check with the other.
See pricingFrequently asked questions
Is Command A or Grok 4 better for coding?
Public SWE-Bench figures are not available for either model, so the honest test is your own repository — run an identical real bug through both. By design, Command A leans toward enterprise rag and retrieval while Grok 4 leans toward 256k context with native tool use, and that positioning usually predicts which feels better on your codebase.
Which is cheaper, Command A or Grok 4?
Command A is open-weight, so self-hosting means no per-token fee (you pay for hardware instead), while Grok 4 is API-metered at $3/$15 per 1M tokens. For most teams without GPUs, the API model is cheaper to start; at very high volume, self-hosting can win.
Which has the bigger context window?
Both advertise 256K (~384 pages). Remember advertised ≠ usable: recall typically degrades before the ceiling.
Can I use both Command A and Grok 4 together?
Yes — a multi-model platform like LumiChats gives you Command A, Grok 4 and 40+ others under one ₹69/day pass (about $1/day), so you can draft with one and cross-check with the other instead of buying two subscriptions.
Which is newer, Command A or Grok 4?
Grok 4 — released July 9, 2025, about 4 months after Command A.
Related comparisons
Specifications and benchmarks reflect publicly reported figures as of June 2026 and may change as providers release updates. Always verify on your own workload.