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G

AI Model · Multimodal

GPT-5.5

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

AI Model · Multimodal

OpenAI o1

API-only Not applicable for models Launch 2024
View full profile

GPT-5.5 vs OpenAI o1

GPT-5.5 is better for multimodal tasks with large contexts (1.05m), while OpenAI o1 is better for multimodal tasks with large contexts (200k).

Last updated Apr 23, 2026

At a glance

Price model

GPT-5.5

API-only

OpenAI o1

API-only

Primary modality

GPT-5.5

Multimodal

OpenAI o1

Multimodal

Context window

GPT-5.5

1.05M

OpenAI o1

200k

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 OpenAI o1

  • ✓ Context window: 200k.
  • ✓ Modality: Multimodal.
  • ✓ Pricing model: API-only.
  • ✓ Built by OpenAI.

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
OpenAI o1 ✓ Multimodal
Provider
GPT-5.5 ✓ OpenAI
OpenAI o1 ✓ OpenAI
Launch year
GPT-5.5 ✓ 2026
OpenAI o1 ✓ 2024
Availability
GPT-5.5 ✓ Public website listed
OpenAI o1 ✓ Public website listed
API
GPT-5.5 × Not listed
OpenAI o1 × Not listed
Open source
GPT-5.5 × Not listed
OpenAI o1 × Not listed
Free tier
GPT-5.5 × Not listed
OpenAI o1 × Not listed
Enterprise support
GPT-5.5 × Not listed
OpenAI o1 × Not listed
Verified owner
GPT-5.5 - Not applicable for models
OpenAI o1 - Not applicable for models
Features
Integrations
GPT-5.5 ✓ ChatGPT, Cursor, AICode
OpenAI o1 ✓ ChatGPT, Cursor
Modality
GPT-5.5 ✓ Multimodal
OpenAI o1 ✓ Multimodal
Fine tuning
GPT-5.5 × Not listed
OpenAI o1 × Not listed
Context window
GPT-5.5 ✓ 1.05M
OpenAI o1 ✓ 200k
File upload
GPT-5.5 × Not listed
OpenAI o1 × Not listed
Memory
GPT-5.5 × Not listed
OpenAI o1 × Not listed
Agents
GPT-5.5 × Not listed
OpenAI o1 × Not listed
Image generation
GPT-5.5 × Not listed
OpenAI o1 × Not listed
Voice capabilities
GPT-5.5 × Not listed
OpenAI o1 × Not listed
Pricing
Free plan
GPT-5.5 × Not listed
OpenAI o1 × Not listed
Starter price
GPT-5.5 ✓ API-only
OpenAI o1 ✓ API-only
Team plan
GPT-5.5 - Not applicable for models
OpenAI o1 - Not applicable for models
Enterprise
GPT-5.5 - Not applicable for models
OpenAI o1 - Not applicable for models
Community
Reviews
GPT-5.5 - Not applicable for models
OpenAI o1 - Not applicable for models
Ratings
GPT-5.5 - Not applicable for models
OpenAI o1 - Not applicable for models
Saves
GPT-5.5 - Not applicable for models
OpenAI o1 - 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.

OpenAI o1

Pros

  • ✓Context window: 200k.
  • ✓Modality: Multimodal.
  • ✓Pricing model: API-only.
  • ✓Built by OpenAI.

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 OpenAI o1?

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

Is GPT-5.5 or OpenAI o1 better for developers?

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

Is GPT-5.5 or OpenAI o1 better value?

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

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