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G

AI Model · Multimodal

GPT-5.5

API-only Not applicable for models Launch 2026
View full profile
G

AI Model · Multimodal

Grok 4

API-only Not applicable for models Launch 2026
View full profile

GPT-5.5 vs Grok 4

GPT-5.5 is better for multimodal tasks with large contexts (1.05m), while Grok 4 is better for multimodal tasks with large contexts (256k).

Last updated Apr 23, 2026

At a glance

Price model

GPT-5.5

API-only

Grok 4

API-only

Primary modality

GPT-5.5

Multimodal

Grok 4

Multimodal

Context window

GPT-5.5

1.05M

Grok 4

256k

Decision shortcuts

Why Choose Each

Why choose GPT-5.5

  • ✓ Context window: 1.05M.
  • ✓ Modality: Multimodal.
  • ✓ Pricing model: API-only.
  • ✓ Built by OpenAI.

Why choose Grok 4

  • ✓ Context window: 256k.
  • ✓ Modality: Multimodal.
  • ✓ Pricing model: API-only.
  • ✓ Built by xAI.

Static verdicts

Verdicts by Use Case

Best Overall

Tie

Both options have similar public evidence, so the better choice depends on your use case.

Best for Developers

GPT-5.5

GPT-5.5 has the stronger developer fit from API, model, context, or integration signals.

Best Value

Tie

Neither option exposes a clearly better public price signal.

Best for Beginners

Tie

Both options appear similarly approachable from the available public fields.

Best for Teams

Tie

The visible team rollout signals are similar.

Audience fit

Audience Breakdown

Developers

GPT-5.5

API control, model details, and technical integration signals matter most.

Startups

Tie

Visible free or low-cost pricing is weighted heavily for early teams.

Enterprises

Tie

Team rollout favors packaged workflow context and visible public signals.

Marketers

Tie

Marketing fit favors finished workflow tools over raw model infrastructure.

Designers

Tie

Design teams usually benefit from packaged software and clear category fit.

Students

Tie

Student fit favors clear free-tier or low-cost public pricing signals.

Grouped specs

Comparison Matrix

Overview
Category
GPT-5.5 ✓ Multimodal
Grok 4 ✓ Multimodal
Provider
GPT-5.5 ✓ OpenAI
Grok 4 ✓ xAI
Launch year
GPT-5.5 ✓ 2026
Grok 4 ✓ 2026
Availability
GPT-5.5 ✓ Public website listed
Grok 4 ✓ Public website listed
API
GPT-5.5 × Not listed
Grok 4 × Not listed
Open source
GPT-5.5 × Not listed
Grok 4 × Not listed
Free tier
GPT-5.5 × Not listed
Grok 4 × Not listed
Enterprise support
GPT-5.5 × Not listed
Grok 4 × Not listed
Verified owner
GPT-5.5 - Not applicable for models
Grok 4 - Not applicable for models
Features
Integrations
GPT-5.5 ✓ ChatGPT, Cursor, AICode
Grok 4 × Not listed
Modality
GPT-5.5 ✓ Multimodal
Grok 4 ✓ Multimodal
Fine tuning
GPT-5.5 × Not listed
Grok 4 × Not listed
Context window
GPT-5.5 ✓ 1.05M
Grok 4 ✓ 256k
File upload
GPT-5.5 × Not listed
Grok 4 × Not listed
Memory
GPT-5.5 × Not listed
Grok 4 × Not listed
Agents
GPT-5.5 × Not listed
Grok 4 × Not listed
Image generation
GPT-5.5 × Not listed
Grok 4 × Not listed
Voice capabilities
GPT-5.5 × Not listed
Grok 4 × Not listed
Pricing
Free plan
GPT-5.5 × Not listed
Grok 4 × Not listed
Starter price
GPT-5.5 ✓ API-only
Grok 4 ✓ API-only
Team plan
GPT-5.5 - Not applicable for models
Grok 4 - Not applicable for models
Enterprise
GPT-5.5 - Not applicable for models
Grok 4 - Not applicable for models
Community
Reviews
GPT-5.5 - Not applicable for models
Grok 4 - Not applicable for models
Ratings
GPT-5.5 - Not applicable for models
Grok 4 - Not applicable for models
Saves
GPT-5.5 - Not applicable for models
Grok 4 - Not applicable for models

Concrete tradeoffs

Strengths & Weaknesses

GPT-5.5

Pros

  • ✓Context window: 1.05M.
  • ✓Modality: Multimodal.
  • ✓Pricing model: API-only.
  • ✓Built by OpenAI.

Cons

  • ×No confirmed limitations in the current TipJournal listing.

Grok 4

Pros

  • ✓Context window: 256k.
  • ✓Modality: Multimodal.
  • ✓Pricing model: API-only.
  • ✓Built by xAI.

Cons

  • ×No confirmed limitations in the current TipJournal listing.

Other options

Alternatives

G

GLM-4.7

Zhipu AI • 200k

Compare
C

Claude Opus 4.7

Anthropic • 1M

Compare

Decision questions

FAQ

Which is better, GPT-5.5 or Grok 4?

Neither option clearly leads from the public TipJournal data. Compare pricing, category, and capability fit before choosing.

Is GPT-5.5 or Grok 4 better for developers?

Tie is the better developer-oriented choice when API control, model details, or technical evaluation matter.

Is GPT-5.5 or Grok 4 better value?

The public pricing data does not show a clear value winner.

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