Skip to main content
idapt
HomeCodeAI ModelsPricing
Sign inStart free trial
  • Home
  • Pricing
  • AI Models
  • Image models
  • Voice models
  • Video models
  • Rankings
  • New models
  • Model status
  • Multi-Model Chat
  • Agents
  • Computers
  • Drive
  • Automations
  • AI Gateway
  • All features →
  • LLM cost calculator
  • Token counter
  • All free tools →
  • Blog
  • Use cases
  • Comparisons
  • Best of
  • Benchmarks
  • Demos
  • Changelog
  • Help center
  • FAQ
  • Privacy
  • Compare all models
  • Support
  • idapt Code
  • Developers
  • Quickstarts
  • API reference
  • API pricing
  • CLI
  • MCP
  • Downloads
  • Desktop
  • Badges and embeds
© idapt[email protected]TermsPrivacy PolicyLegal noticeReport content
X (Twitter)

Grok 4.5 vs GPT Mini (120b)

At a glance

xAI's Opus-class flagship for frontier coding, agentic tool use, and knowledge work.

89500K ctx$2.00/$6.00 per M#6/92

OpenAI's budget-friendly reasoning model — fast and surprisingly capable.

73131K ctx$0.04/$0.17 per M#49/92
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CI 86.2-90.3
CodingInsufficient data
Sources:Epoch ECI·Epoch AI·Provider·OpenRouter· as of 2026-07-10
Smarter21%
Capability
CapabilityECI21%88.5
Reasoning & Knowledge
Graduate Science93.4%Factual Recall53.5%
Math
Competition Math97.8%
Coding
Code Editing—
Agentic
Terminal Tasks345%83.3%Task Horizon—
Reasoning
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper98%
Capability
CapabilityECI73.2
Reasoning & Knowledge
Graduate Science—Factual Recall—
Math
Competition Math—
Coding
Code Editing41.8%
Agentic
Terminal Tasks18.7%Task Horizon42min
Specs
500K
Context
16K
Max output
Jul 2026
Released
131K
Context
66K
Max output
Aug 2025
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$2.00/M tokens
Output$6.00/M tokens
Cache read$0.30/M tokens
Web search$0.005/search
Live pricing, shown before you run
Input98%$0.04/M tokens
Output97%$0.17/M tokens
Chat with Grok 4.5Go to model
Chat with GPT Mini (120b)Go to model
Frequently Asked Questions: Grok 4.5 vs GPT Mini (120b)▼

Which is better, Grok 4.5 or GPT Mini (120b)?

▼

Based on the Capability Index, Grok 4.5 scores higher (88.5 vs 73.2). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.

Which is cheaper, Grok 4.5 or GPT Mini (120b)?

▼

GPT Mini (120b) has a lower blended cost. Grok 4.5: $2.00 input / $6.00 output. GPT Mini (120b): $0.04 input / $0.17 output.

Which has a larger context window, Grok 4.5 or GPT Mini (120b)?

▼

Grok 4.5 has a larger context window: Grok 4.5 supports 500K tokens vs GPT Mini (120b) at 131K tokens.

Do both Grok 4.5 and GPT Mini (120b) support vision?

▼

Grok 4.5 supports vision/image input, but GPT Mini (120b) does not.

What are the key differences between Grok 4.5 and GPT Mini (120b)?

▼

Key differences: Grok 4.5 has a notably higher capability index (15.3 point gap); GPT Mini (120b) is significantly cheaper; only Grok 4.5 supports vision input. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Grok 4.5 and GPT Mini (120b) for free on idapt.app to see which performs better for your specific needs.

Open in App