Frontier AI Model Comparison¶

Quick reference matrix comparing the major models as of April 2026.

Overall Feature Comparison¶

Feature	GPT-5.4	Gemini 3.1	Claude 4.6	Llama 4
Release	Mar 2026	Feb 2026	Feb 2026	2026 Q1
Status	Active	Active	Active	Active
Cost Tier	Premium	Premium	Premium	Free (open)
Modalities	Text, Code	Text, Image, Audio, Video	Text	Text, Image, Video
Context Window	Standard	1M (→2M)	Standard	400K-10M
Thinking Model	Yes (separate)	Native	Yes (separate)	No
Open Source	❌	❌	❌	✅

Architecture Comparison¶

Aspect	GPT-5.4	Gemini 3.1	Claude 4.6	Llama 4
Design Focus	Agentic + coding	Thinking + multimodal	Reasoning + safety	Efficiency + open
Multimodal	Text/code native	Early-fusion (native)	Text-primary	Early-fusion (native)
Parameter Efficiency	Standard	Standard	Standard	MoE (17B active)
Specialized Variants	Mini, Nano, Spark	Nano Banana 2	Mythos (security)	Scout, Maverick

Performance Benchmarks¶

Computer Use / Agentic Tasks¶

Model	Benchmark	Score	Notes
GPT-5.4 Standard	OSWorld	75%	Near-human reliability
GPT-5.4 Mini	SWE-bench Pro	54.38%	6x cheaper, near-parity with Standard
Gemini 3.1 Pro	AIME 2025	95.6%	Math reasoning leader
Claude 4.6 Opus	Code eval	97%	Strong reasoning
Llama 4	Open-weight	Baseline	Efficiency-focused

Intelligence Index¶

Rank	Model	Score	Date
#1	Gemini 3.1 Pro	57	Apr 2026
#2	GPT-5.4 Standard	56.8	Apr 2026
#3	Claude 4.6 Opus	56.5	Apr 2026
#4	Llama 4 Maverick	54.2	Apr 2026

Context Window Comparison¶

Model	Context	Practical Use
Gemini 3.1 Pro	1M tokens (2M planned)	Full code repositories, 45min video
Llama 4 Maverick	10M tokens	Massive document ingestion
Llama 4 Scout	400K tokens	Large documents, multiple files
GPT-5.4	~128K tokens	Standard multi-file projects
Claude 4.6	~200K tokens	Large codebase context

Pricing & Cost-Effectiveness¶

API Pricing (per 1M tokens)¶

Model	Input	Output	Use Case
GPT-5.4 Standard	$2.50	$15.00	General purpose
GPT-5.4 Mini	$0.15	$0.60	Cost-optimized (95% performance)
Gemini 3.1 Pro	$3.50	$14.00	Reasoning/multimodal
Claude 4.6 Sonnet	$3.00	$15.00	Balanced
Llama 4	$0.00	$0.00	Open-source (self-hosted)

Cost-Performance Ratio¶

Best value: GPT-5.4 Mini - 54.38% SWE-bench (vs Standard 57.7%) - 6x cheaper - 94% performance, 17% cost

Best reasoning: Gemini 3.1 Pro - AIME: 95.6% - Native thinking - Full multimodal

Best for scale: Llama 4 Maverick - 10M context - Free/open-source - GPU-efficient (single H100)

Modality Support¶

Model	Text	Image	Audio	Video
GPT-5.4	✅	❌	❌	❌
Gemini 3.1	✅	✅	✅	✅
Claude 4.6	✅	✅	❌	❌
Llama 4	✅	✅	❌	✅

When to Use Each Model¶

Choose GPT-5.4 when:¶

You need agentic capabilities (desktop/web automation)
Coding is a primary task
Cost efficiency matters (use Mini variant)
You need fast inference

Choose Gemini 3.1 when:¶

Video/audio understanding is required
You need the highest intelligence score
Extremely long context (1M+ tokens)
Multimodal reasoning is central

Choose Claude 4.6 when:¶

You need strong reasoning/analysis
Security/safety is paramount
You require specialized variants (Mythos for red-teaming)
Balanced performance across tasks

Choose Llama 4 when:¶

Cost/hosting is critical (open-source)
Privacy requires on-prem deployment
You can fine-tune for specific domain
You have GPU infrastructure

Model Lifecycle Status¶

Active (April 2026)¶

GPT-5.4 (all variants)
Gemini 3.1 Pro
Claude 4.6 (Opus, Sonnet, Haiku)
Llama 4 (Scout, Maverick)

Retiring Soon¶

GPT-5.2 (retiring June 5, 2026)
Gemini 2.5 Pro (deprecated March 2026)
Claude 3.7 Sonnet (previous generation)

Deprecated¶

GPT-4.5 / earlier
Gemini 3.0 / earlier
Claude 3.5 / earlier

Decision Matrix¶

Need multimodal? → Gemini 3.1
   ↓ No
Need agentic? → GPT-5.4
   ↓ No
Need reasoning? → Claude 4.6
   ↓ No
Need open-source? → Llama 4
   ↓ No
→ Default: GPT-5.4 Standard

Last Updated¶

April 8, 2026