🆕 NewJuly 16, 2026
Grok 4.5 released
xAI's new flagship pairs strong terminal and coding performance with real-time access to X (Twitter) data, at a mid-tier $2/$6 per million tokens with a 500K context window.
Grok 4.5
🧠 Reasoning🌐 Web Search
xAI's brand-new flagship. Strong terminal and coding chops at a mid-tier price, with live access to X (Twitter) data.
Released July 16, 2026
Pricing
Input tokens$2.00/M
Output tokens$6.00/M
Capacity
Context window500K tokens
Capabilities
✓Reasoning & Planning
✓Web Search
✗Open Source
Best Scores
GDPval-AA v21527.0 pts
GPQA Diamond93.1%
SWE-bench Verified86.6%
Terminal-Bench 2.183.3%
SWE-bench Pro64.7%
Best For
💻coding
📊analysis
🔬research
Benchmark Scores
Specialized Skills
GDPval-AA v2
Real paid work from 44 different jobs, such as law, nursing, and software. Judges compare two answers side by side without knowing which model wrote them, and the winner gains rating points. A typical human expert scores 1000, so a higher number means the work was picked over a human more often.
Independently measured by Artificial Analysis.
Knowledge
GPQA Diamond
PhD-level science questions written so you cannot just Google the answer. Tests whether the model can reason about hard science.
Independently measured by Artificial Analysis.
Humanity's Last Exam
PhD-level questions across many subjects. Tests deep reasoning on the hardest questions humans can ask.
Independently measured by Artificial Analysis.
Software Engineering
SWE-bench Verified
Hands the AI bugs from actual software projects and counts how many it fixes. Like a coding job interview, but with real work.
Independently measured by Vals AI (mini-swe-agent).
Terminal-Bench 2.1
Puts the AI in front of a computer terminal and asks it to finish multi-step tasks on its own. Measures how good an "AI agent" it is.
Provider-reported; an independent run by Vals AI (Terminus 2) lands at 67.79%.
SWE-bench Pro
The harder version of the coding test. Bigger codebases, trickier bugs. Scores drop for everyone, so the gaps between models become clearer.
Provider-reported; no independent run recorded yet.
Reasoning
Artificial Analysis Intelligence Index
A frequently refreshed overall score made from nine modern tests: real work, tool use, terminal tasks, science, hard questions, and long-context reasoning. It is a scorecard rather than a percent correct.
Independently measured by Artificial Analysis.
Why Choose Grok 4.5?
Grok 4.5 is xAI's newest flagship with strong terminal and coding performance. The unique advantage: real-time access to X (Twitter) data. If you need live social insights combined with top-tier reasoning, Grok is the only option.
How It Compares
vs GPT-5.6 Sol
Grok is cheaper and has X data access; Sol is stronger on terminal tasks.
vs Claude Opus 4.8
Grok has unique Twitter integration; Opus is stronger on pure reasoning.