xAI has launched a newer model, Grok 4, we suggest considering this model instead.
For more information, see Comparison of Grok 4 to other models and API provider benchmarks for Grok 4.
Grok 3 Intelligence, Performance & Price Analysis
Model summary
Intelligence
Artificial Analysis Intelligence Index
Speed
Output tokens per second
Input Price
USD per 1M tokens
Output Price
USD per 1M tokens
Verbosity
Output tokens from Intelligence Index
Metrics are compared against models of the same class:
- Non-reasoning models → compared only with other non-reasoning models
- Reasoning models → compared across both reasoning and non-reasoning
- Open weights models → compared only with other open weights models of the same size class:
- Tiny: ≤4B parameters
- Small: 4B–40B parameters
- Medium: 40B–150B parameters
- Large: >150B parameters
- Proprietary models → compared across proprietary and open weights models of the same price range, using a blended 3:1 input/output price ratio:
- <$0.15 per 1M tokens
- $0.15–$1 per 1M tokens
- >$1 per 1M tokens
| Reasoning | No This page shows the non-reasoning version of this model. A reasoning variant may also exist. |
|---|---|
| Input modality | Supports: text |
| Output modality | Supports: text, image |
| Context window | 1m ~1500 A4 pages of size 12 Arial font |
Grok 3 is above average in intelligence, but somewhat expensive when comparing to other non-reasoning models of similar price. It's also faster than average, however somewhat verbose. The model supports text input, outputs text and image, and has a 1m tokens context window.
Grok 3 scores 25 on the Artificial Analysis Intelligence Index, placing it above average among comparable models (averaging 21). When evaluating the Intelligence Index, it generated 5.3M tokens, which is somewhat verbose in comparison to the average of 4.0M.
Pricing for Grok 3 is $3.00 per 1M input tokens (somewhat expensive, average: $2.00) and $15.00 per 1M output tokens (somewhat expensive, average: $8.00). In total, it cost $311.71 to evaluate Grok 3 on the Intelligence Index.
At 83 tokens per second, Grok 3 is faster than average (54).
Intelligence
Artificial Analysis Intelligence Index
Artificial Analysis Intelligence Index by Open Weights / Proprietary
Intelligence Evaluations
Openness
Artificial Analysis Openness Index: Results
Intelligence Index Comparisons
Intelligence vs. Price
Intelligence Index Token Use & Cost
Output Tokens Used to Run Artificial Analysis Intelligence Index
Cost to Run Artificial Analysis Intelligence Index
Context Window
Context Window
Pricing
Pricing: Input and Output Prices
Intelligence vs. Price (Log Scale)
Pricing Comparison of Grok 3 API Providers
Speed
Measured by Output Speed (tokens per second)
Output Speed
Output Speed vs. Price
Latency
Measured by Time (seconds) to First Token
Latency: Time To First Answer Token
End-to-End Response Time
Seconds to output 500 Tokens, calculated based on time to first token, 'thinking' time for reasoning models, and output speed
End-to-End Response Time
Model Size (Open Weights Models Only)
Model Size: Total and Active Parameters
Comparisons to Grok 3
- Grok 3
gpt-oss-120B (high)- gpt-oss-20B (high)
- GPT-5.4 (xhigh)
- GPT-5.4 Pro (xhigh)
- GPT-5.3 Codex (xhigh)
Llama 4 Maverick
Gemini 3.1 Flash-Lite Preview- Gemini 3 Flash
- Gemini 3.1 Pro Preview
Claude 4.5 Haiku- Claude Sonnet 4.6 (max)
- Claude Opus 4.6 (max)
Mistral Large 3
DeepSeek V3.2- Grok 4.20 Beta 0309
Nova 2.0 Pro Preview (medium)
MiniMax-M2.5
NVIDIA Nemotron 3 Super- NVIDIA Nemotron 3 Nano
Kimi K2.5
K-EXAONE
MiMo-V2-Flash (Feb 2026)- MiMo-V2-Pro
K2 Think V2
Mi:dm K 2.5 Pro
GLM-5
Qwen3.5 397B A17B
Frequently Asked Questions
Common questions about Grok 3
Grok 3 was released on February 19, 2025.
Grok 3 was created by xAI.
Grok 3 scores 25 on the Artificial Analysis Intelligence Index, placing it above average among other non-reasoning models in a similar price tier (median: 21).
Grok 3 generates output at 83.4 tokens per second (based on xAI's API), which is above average compared to other non-reasoning models in a similar price tier (median: 54.2 t/s).
Grok 3 has a time to first token (TTFT) of 1.40s (based on xAI's API), which is better than average compared to other non-reasoning models in a similar price tier (median: 1.47s).
Grok 3 costs $3.00 per 1M input tokens (somewhat higher than average, median: $2.00) and $15.00 per 1M output tokens (somewhat higher than average, median: $8.00), based on xAI's API.
Grok 3 costs $3.00 per 1M input tokens and $15.00 per 1M output tokens (based on xAI's API). For a blended rate (3:1 input to output ratio), this is $6.00 per 1M tokens. Pricing may vary by provider. Compare provider pricing
When evaluated on the Intelligence Index, Grok 3 generated 5.3M output tokens, which is somewhat higher than average compared to other non-reasoning models in a similar price tier (median: 4.0M).
No, Grok 3 is not a reasoning model. It provides direct responses without extended chain-of-thought reasoning.
Grok 3 supports text input.
Grok 3 supports text and image output.
No, Grok 3 does not support image input. It can only process text.
No, Grok 3 is not multimodal. It only supports text input.
Grok 3 has a context window of 1.0M tokens. This determines how much text and conversation history the model can process in a single request.
No, Grok 3 is proprietary. The model weights are not publicly available.
Grok 3 is a proprietary model and xAI has not disclosed the model size or parameter count.
Grok 3 achieves a score of 25 on the Artificial Analysis Intelligence Index. This composite benchmark evaluates models across reasoning, knowledge, mathematics, and coding.
Yes, Grok 3 is available via API through 3 providers. Compare API providers
Grok 3 is available through 3 API providers. Compare providers