Google Gemini 3 family vs xAI Grok 4
Google Gemini 3 family vs xAI Grok 4: side-by-side comparison of two foundation models (substrate reference) systems — architecture, taxonomy, license, pricing, MCP/A2A support, and direct edges.
Cost & capability
| Google Gemini 3 family | xAI Grok 4 | |
|---|---|---|
| Capability band | frontier | frontier |
| Capability composite | 93 | 88 |
| Cost tier | mid | premium |
| $/Mtok input | 1.25 | 3 |
| $/Mtok output | 10 | 15 |
| Use cases | Scoped Agentic, Code Generation Focused, Analytical Summarization, Memory Augmented Chat | Scoped Agentic, Code Generation Focused, Analytical Summarization, Memory Augmented Chat |
Where they differ (13)
Rows where both sides have data and the values disagree — the shortlist of dimensions that actually distinguish these two systems.
| Google Gemini 3 family | xAI Grok 4 | |
|---|---|---|
| Capability composite | 93 | 88 |
| Cost tier | mid | premium |
| $/Mtok input | 1.25 | 3 |
| $/Mtok output | 10 | 15 |
| Type | Frontier foundation model family (Gemini 3 Pro / Flash / Nano) | Frontier foundation model from xAI (Grok 4) |
| Created | 2023-12 (Gemini 1.0); 2024-02 (1.5 Pro); 2024-12 (2.0); 2025-03 (2.5 Pro); 2025-12 (Gemini 3) | 2023-07 (xAI founded); 2023-11 (Grok 1); 2024-08 (Grok 2); 2025-02 (Grok 3); 2025-07 (Grok 4) |
| Latest release | Gemini 4 Argon (GA 2026-10-13); Gemini 3.8 Flash (2026-09-02) | Grok 4.7 (2026-09-21) |
| Pricing | Paid per 1M in/out: Gemini 4 Argon $2/$10 intro to 2026-11-30, then $4/$20 (no free tier); Gemini 3.8 Flash $0.75/$3.75 (free tier available) | API: Grok 4.7 $2 in / $6 out per 1M (prompts ‹200k tokens; $4 / $12 above); consumer via X / SuperGrok subscriptions |
| Funding | Alphabet (GOOGL) public; ~$2T+ market cap; Google AI capex $75B+ 2025 | xAI merged into SpaceX (announced 2026-02-02, combined ~$1T); prior $20B Series E (2026-01, ~$230B valuation) |
| Deployment | Managed cloud (Google AI Studio + GCP Vertex AI); on-prem via Gemini-Distributed-Cloud + Gemma open-weights | Managed-only — xAI API, grok.com, X apps; also via Amazon Bedrock, Microsoft Foundry, GitHub Copilot (older Grok-1 / Grok 2 weights downloadable) |
| API surface | REST + gRPC + SDK (Python, Node, Go, Java, .NET, Dart); Google AI Studio + Vertex AI | REST + SDK (Python, TS); OpenAI-compatible |
| Optimised for | multimodal reasoning, ultra-long context (10M tokens), GCP-native enterprise deployments | real-time information (X firehose access); contrarian / less-filtered persona; benchmark frontier-tier reasoning |
| Anti-fit | Gemini Apps consumer privacy concerns; Vertex consumption pricing complex; weights closed (Gemma is separate open-weights family) | X/Twitter integration is unique selling point but creates Musk-political-association risk; weights closed at Grok 4 tier; no on-prem; less polished tool-use than Claude/GPT |
At a glance
| Google Gemini 3 family | xAI Grok 4 | |
|---|---|---|
| Section | Foundation models (substrate reference) | Foundation models (substrate reference) |
| Tier | T1 | T1 |
| Type | Frontier foundation model family (Gemini 3 Pro / Flash / Nano) | Frontier foundation model from xAI (Grok 4) |
| Created | 2023-12 (Gemini 1.0); 2024-02 (1.5 Pro); 2024-12 (2.0); 2025-03 (2.5 Pro); 2025-12 (Gemini 3) | 2023-07 (xAI founded); 2023-11 (Grok 1); 2024-08 (Grok 2); 2025-02 (Grok 3); 2025-07 (Grok 4) |
| Latest release | Gemini 4 Argon (GA 2026-10-13); Gemini 3.8 Flash (2026-09-02) | Grok 4.7 (2026-09-21) |
| License | — | proprietary (Grok 4); older open weights: Grok-1 (Apache-2.0) and Grok 2 (Grok 2 Community License) |
| GitHub | — | github.com/xai-org/grok-1 ~50k stars (older Grok 1 weights only) |
| Pricing | Paid per 1M in/out: Gemini 4 Argon $2/$10 intro to 2026-11-30, then $4/$20 (no free tier); Gemini 3.8 Flash $0.75/$3.75 (free tier available) | API: Grok 4.7 $2 in / $6 out per 1M (prompts ‹200k tokens; $4 / $12 above); consumer via X / SuperGrok subscriptions |
| Funding | Alphabet (GOOGL) public; ~$2T+ market cap; Google AI capex $75B+ 2025 | xAI merged into SpaceX (announced 2026-02-02, combined ~$1T); prior $20B Series E (2026-01, ~$230B valuation) |
| Deployment | Managed cloud (Google AI Studio + GCP Vertex AI); on-prem via Gemini-Distributed-Cloud + Gemma open-weights | Managed-only — xAI API, grok.com, X apps; also via Amazon Bedrock, Microsoft Foundry, GitHub Copilot (older Grok-1 / Grok 2 weights downloadable) |
| API surface | REST + gRPC + SDK (Python, Node, Go, Java, .NET, Dart); Google AI Studio + Vertex AI | REST + SDK (Python, TS); OpenAI-compatible |
| Optimised for | multimodal reasoning, ultra-long context (10M tokens), GCP-native enterprise deployments | real-time information (X firehose access); contrarian / less-filtered persona; benchmark frontier-tier reasoning |
| Anti-fit | Gemini Apps consumer privacy concerns; Vertex consumption pricing complex; weights closed (Gemma is separate open-weights family) | X/Twitter integration is unique selling point but creates Musk-political-association risk; weights closed at Grok 4 tier; no on-prem; less polished tool-use than Claude/GPT |
Pros & cons
Google Gemini 3 family
Pros: Largest context window (1M-10M tokens) of frontier tier; native multimodal (single architecture); GCP enterprise distribution; FedRAMP High; Gemma open-weights companion family.
Cons: Smaller LMSYS Arena share than Claude/GPT; consumer Gemini apps less polished than ChatGPT; pricing complexity at Vertex; lags Claude on agentic coding benchmarks.
xAI Grok 4
Pros: Real-time X/Twitter data access (unique among frontier models); Colossus supercluster gives independent training capacity; ARC-AGI-2 leader (vendor-stated).
Cons: Owner Musk political controversy creates enterprise procurement headwind; closed weights at Grok 4; no on-prem; less mature ecosystem than Anthropic/OpenAI/Google.