Grok — built to understand the universe, trained on X.
xAI is Elon Musk's AI lab. Grok 4 is their most capable model, with deep X/Twitter integration for real-time information and strong reasoning performance.
Rankings refresh dailyScored on 6 criteriaNo paid rankings
Grok 4 has real-time access to X/Twitter data — unique among frontier models
Available via API and in X Premium subscription
Strong on reasoning and real-time current events
6 models
All xAI Models
Every xAI model in the directory, ranked by overall capability score.
xAIBalanced
Grok 4
xAI's latest flagship with strong coding benchmark performance, a 2M token context window, and aggressive pricing at $2/$6 per million tokens.
Verdict
Strong coding value with 2M context — an underrated pick at this price.
Quality score
83%
Pricing
$2.00/1M in
$6.00/1M out
Speed
Fast
Best for coding and research at competitive pricing with maximum context
Context
2M tokens
Best when you want near-flagship coding quality with a massive context window at a mid-tier price.
Coding2M contextValuexAI
Best for
Coding and research at competitive pricing with maximum context
Grok 3 Beta is xAI's flagship large language model, trained on a massive dataset with claimed real-time access to X (Twitter) data and strong reasoning capabilities. It competes directly with frontier models like Claude Sonnet 4 and GPT-4o across coding, analysis, and general tasks.
Verdict
A powerful but unproven flagship that earns its place for STEM and real-time social data use cases, but the beta tag means it's not yet ready to dethrone Anthropic or OpenAI at this price.
Quality score
71%
Pricing
$3.00/1M in
$15.00/1M out
Speed
Balanced
Best for users who want a frontier-capable model with real-time social context from x and strong stem reasoning at a mid-range price point.
Context
131k tokens
Model is currently in beta, meaning capabilities and pricing may change. Real-time X data integration depends on xAI's API access policies, which may be subject to change. No image generation support confirmed.
FrontierSTEMReal-timexAIBeta
Best for
Users who want a frontier-capable model with real-time social context from X and strong STEM reasoning at a mid-range price point.
Grok 3 Mini Beta is xAI's lightweight reasoning-capable model designed for cost-efficient tasks that benefit from structured thinking without the full compute of Grok 3. It offers a 128K context window at sub-dollar pricing per million tokens.
Verdict
A surprisingly capable budget reasoner held back only by its beta instability.
Quality score
58%
Pricing
$0.30/1M in
$0.50/1M out
Speed
Fast
Best for budget-conscious users who need light reasoning and logical tasks without paying flagship prices.
Context
131k tokens
Model is in Beta — API behavior, rate limits, and availability may change without notice. No multimodal support confirmed. Reasoning mode may increase effective latency on complex prompts despite fast base speed.
BudgetReasoningMiniBetaxAI
Best for
Budget-conscious users who need light reasoning and logical tasks without paying flagship prices.
Grok 3 Mini is xAI's lightweight, budget-tier reasoning model built on the Grok 3 architecture, designed to deliver strong logical and analytical performance at a fraction of the cost of flagship models. It targets cost-sensitive workloads where reasoning quality still matters.
Verdict
A sharp budget reasoning model that earns its place when logic matters more than creativity or multimodal support.
Quality score
57%
Pricing
$0.30/1M in
$0.50/1M out
Speed
Fast
Best for developers and researchers who need solid reasoning and logic tasks at near-throwaway pricing without committing to a full flagship model.
Context
131k tokens
Pricing is highly competitive at $0.30 input / $0.50 output per million tokens. Context window is 131K tokens. No vision/image input support. xAI's API platform is newer and may have availability or rate-limit considerations compared to established providers.
BudgetReasoningLightweightLow CostxAI
Best for
Developers and researchers who need solid reasoning and logic tasks at near-throwaway pricing without committing to a full flagship model.
Grok 3 is xAI's flagship large language model, trained on a massive dataset including real-time X (Twitter) data and designed for advanced reasoning, coding, and research tasks. It competes directly with GPT-4o and Claude Sonnet 4 at a similar price point.
Verdict
A strong STEM-focused flagship with unique real-time X data access, but priced high for what it delivers versus Claude Sonnet 4 and GPT-4o.
Quality score
68%
Pricing
$3.00/1M in
$15.00/1M out
Speed
Balanced
Best for users who need strong reasoning and coding capabilities with access to real-time x/twitter data for current events and social context.
Context
131k tokens
Available via xAI API and integrated into X Premium subscriptions. Real-time X data access is a differentiating feature not available on competing models. Pricing is competitive but output costs are on the higher end for balanced-tier models.
FlagshipSTEMReal-time dataReasoningxAI
Best for
Users who need strong reasoning and coding capabilities with access to real-time X/Twitter data for current events and social context.
Grok Code Fast 1 is xAI's budget-tier coding-focused model optimized for speed and cost efficiency, built on xAI's infrastructure with a 256K context window. It targets developers who need rapid code generation and completion at near-commodity pricing.
Verdict
A scrappy, low-cost coding model worth benchmarking for high-volume pipelines, but output pricing limits its ceiling.
Quality score
45%
Pricing
$0.20/1M in
$1.50/1M out
Speed
Very fast
Best for high-volume, low-latency coding tasks where cost per token matters more than peak quality.
Context
256k tokens
Pricing is asymmetric: input at ~$0.20/1M is excellent, but $1.50/1M output undercuts its budget appeal for generation-heavy use. Availability through xAI's API; check for rate limits and regional availability as xAI's infrastructure is still scaling.
budgetcodingfastxAIcode-focused
Best for
High-volume, low-latency coding tasks where cost per token matters more than peak quality.
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xAI FAQ
What is xAI's best model in 2026?
Grok 4 is xAI's most capable model in 2026. It has strong reasoning performance and unique real-time access to X/Twitter data. For most coding and writing tasks, Claude Sonnet 4.6 and GPT-5.4 remain stronger — Grok 4 is best when real-time information or X integration matters.
How does Grok compare to Claude and GPT?
Grok 4 is competitive on reasoning but trails Claude Opus 4.7 on coding benchmarks and GPT-5.5 on agentic workflows. Grok's unique advantage is real-time X/Twitter access — useful for current events, social sentiment, and news-aware tasks.
How do I access Grok?
Grok is available via the xAI API and through X Premium subscriptions. The API supports streaming and tool use. Consumer access is via x.com/grok.
