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
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.
Specifications
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.
Frequently 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.
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.
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.
Specifications and benchmarks reflect publicly reported figures as of June 2026 and may change as providers release updates. Always verify on your own workload.