GPT-5.4 vs Claude Opus 4.6: Frontier AI Model Comparison (March 2026)
GPT-5.4 vs Claude Opus 4.6: Frontier AI Model Comparison (March 2026)
GPT-5.4 (released March 5, 2026) and Claude Opus 4.6 (February 2026) are the two leading frontier AI models. GPT-5.4 costs roughly half as much ($2.50/M input vs $5/M) and scores 83% on professional work benchmarks. Claude Opus 4.6 excels at autonomous agentic tasks with its unique “agent teams” feature.
Quick Comparison
| Feature | GPT-5.4 | Claude Opus 4.6 |
|---|---|---|
| Release Date | March 5, 2026 | February 5, 2026 |
| Input Price | $2.50/M tokens | $5.00/M tokens |
| Output Price | $15-20/M tokens | $25.00/M tokens |
| Context Window | 1M+ tokens | 1M tokens (beta) |
| Max Output | 128K tokens | 64K tokens |
| Computer Use | Yes | Yes |
| Agent Teams | No | Yes (unique) |
| Thinking Mode | Extended | Adaptive |
GPT-5.4 Highlights
Released March 5, 2026, GPT-5.4 is OpenAI’s “most capable and efficient frontier model for professional work.”
Key capabilities:
- 83% on professional work benchmarks - surpasses human performance on desktop navigation
- 1M+ token context (922K input, 128K output)
- Computer use - can control desktop applications
- Tool search - new capability for finding and using tools
- Vision + text inputs in the same workflow
Pricing:
- Input: $2.50/M tokens
- Cached input: $0.625/M tokens (75% savings)
- Output: $15-20/M tokens
- Regional processing: +10% premium
Claude Opus 4.6 Highlights
Released February 5, 2026, Claude Opus 4.6 is Anthropic’s “most intelligent model for complex agentic tasks.”
Key capabilities:
- Agent teams - split tasks across multiple coordinated agents working in parallel
- Adaptive thinking - automatically adjusts reasoning depth
- 1M token context (beta via Developer Platform)
- Long-horizon work - designed for extended autonomous tasks
- Broke its own benchmark - identified and decrypted BrowseComp answer key
Pricing:
- Input: $5.00/M tokens
- Output: $25.00/M tokens
- Prompt caching: up to 90% savings
- Batch processing: 50% savings
When to Choose GPT-5.4
Choose GPT-5.4 when you need:
- Lower costs - roughly 50% cheaper per token
- Professional workflows - optimized for desktop/work tasks
- Larger output - 128K max output vs 64K
- Tool search - automatic tool discovery
- OpenAI ecosystem - existing integrations
When to Choose Claude Opus 4.6
Choose Claude Opus 4.6 when you need:
- Agent orchestration - unique “agent teams” for parallel work
- Autonomous tasks - designed for minimal supervision
- Long-horizon reasoning - complex multi-step projects
- Adaptive thinking - automatic effort adjustment
- Claude Code integration - seamless terminal agent workflow
Benchmark Comparison
Professional Work:
- GPT-5.4: 83% (claimed by OpenAI)
- Claude Opus 4.6: Strong but focused on agentic benchmarks
Coding:
- Both excel; Claude Code praised for autonomous execution
- GPT-5.4 integrated with Copilot/Cursor ecosystems
Reasoning:
- Both support extended/adaptive thinking modes
- Claude Opus 4.6 broke BrowseComp benchmark (raised integrity concerns)
The Verdict
For cost-conscious professional work and broad capability, GPT-5.4 offers better value at half the price.
For autonomous agentic workflows where AI coordinates complex, parallel tasks with minimal supervision, Claude Opus 4.6’s agent teams are uniquely powerful.
Many developers use both: GPT-5.4 for volume work, Opus 4.6 for complex autonomous projects.
Related Questions
Last verified: March 11, 2026