xAI
Grok 4.5
xAI's coding, agentic and knowledge-work model, announced publicly on July 16, 2026; its API release notes record availability on July 8. It accepts text and images, produces text and supports function calling, structured outputs and reasoning within a 500K-token context window. Standard xAI API input/output rates are $2/$6 per MTok (input/output) below 200K prompt tokens and $4/$12 at or above 200K; cached input is $0.30/$0.60 respectively.
- Provider
- xAI
- Context
- 500KCatalog · As of Aug 11, 2026Stale · 31d old
- yno subscription tier
- Max
- Released
- Jul 16, 2026
- Speed
- Medium
- Reasoning
- Expert
- Modality
- Multimodal
Benchmarks
Quality
- AA Intelligence Index
- AA Coding Index
- GPQA Diamond
- 93.1%Artificial Analysis · Date unknownAge unknown
Speed and latency
- Output speed
- 57.3tokens/sConfiguration: Prompt length: 1,000 · Parallel queries: 1Artificial Analysis · Date unknownAge unknown
- Time to first token
- 13.91sConfiguration: Prompt length: 1,000 · Parallel queries: 1Artificial Analysis · Date unknownAge unknown
- Time to first answer token
- 13.91sConfiguration: Prompt length: 1,000 · Parallel queries: 1Artificial Analysis · Date unknownAge unknown
API pricing
- API input cost
- API output cost
Benchmark variant: Grok 4.5 (high)
AA data retrieved Sep 11, 2026 · Artificial Analysis
Indexes use points; evaluations use accuracy percentages. API measurements do not measure yno application performance. Methodology
Capabilities
- Reasoning
- Code
- Agentic
- Vision
- Tool Use
- Structured Outputs
Use cases
- Agentic coding
- App building
- Strategic analysis
- Tool-calling agents
Strengths
- 500K context
- Text and image input
- Function calling and structured outputs
- Prompt caching
Best for
Teams building coding and knowledge-work agents with image input and tool use
No credit card required
Related models
Frequently asked
- What is Grok 4.5?
- xAI's coding, agentic and knowledge-work model, announced publicly on July 16, 2026; its API release notes record availability on July 8. It accepts text and images, produces text and supports function calling, structured outputs and reasoning within a 500K-token context window. Standard xAI API input/output rates are $2/$6 per MTok (input/output) below 200K prompt tokens and $4/$12 at or above 200K; cached input is $0.30/$0.60 respectively.
- How much does Grok 4.5 cost in yno.ai?
- Grok 4.5 is available on the Max tier of yno.ai.
- What can Grok 4.5 do?
- Grok 4.5 is best for Teams building coding and knowledge-work agents with image input and tool use. Its main capabilities include Reasoning, Code, Agentic, Vision, Tool Use, Structured Outputs.
- How does Grok 4.5 compare to other models?
- Grok 4.5 excels at 500K context and is recommended for Agentic coding, App building, Strategic analysis, Tool-calling agents. See related models below.
- How do I use Grok 4.5 in yno.ai?
- Sign up for yno.ai, select Grok 4.5 from the model picker, and start chatting.