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Claude Opus 4.8 vs GPT 4.1

At a glance
AnthropicClaude Opus 4.8

Anthropic's most capable Opus yet, built for long-horizon autonomous agents and frontier coding.

891M ctx$5.00/$25.00 per M#4/92
OpenAIGPT 4.1

OpenAI's flagship GPT-4.1 with advanced instruction following and long context.

701.0M ctx$2.00/$8.00 per M#55/92
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
AnthropicClaude Opus 4.8
Reasoning
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·Provider·OpenRouter· as of 2026-07-10
Smarter
Capability
CapabilityECI89.2
Reasoning & Knowledge
Graduate Science91.0%Expert-Level—Factual Recall39.5%
Math
Math Problems—Competition Math98.3%Research Math47.2%
Coding
Real-World Coding88.6%Code Editing—
Agentic
Novel Reasoning72.1%
OpenAIGPT 4.1
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper
Capability
CapabilityECI70.4
Reasoning & Knowledge
Graduate Science66.9%Expert-Level5.4%Factual Recall—
Math
Math Problems83.0%Competition Math38.3%Research Math5.5%
Coding
Real-World Coding48.5%Code Editing52.4%
Agentic
Novel Reasoning0.4%
Specs
AnthropicClaude Opus 4.8
1M
Context
128K
Max output
May 2026
Released
OpenAIGPT 4.1
1.0M
Context
16K
Max output
Apr 2025
Released
Capabilities
AnthropicClaude Opus 4.8
Vision
Audio
Reasoning
OpenAIGPT 4.1
Vision
Audio
Reasoning
Pricing
AnthropicClaude Opus 4.8
Live pricing, shown before you run
Input$5.00/M tokens
Output$25.00/M tokens
Cache read$0.50/M tokens
Cache write$6.25/M tokens
Web search$0.01/search
OpenAIGPT 4.1
Live pricing, shown before you run
Input$2.00/M tokens
Output$8.00/M tokens
Cache read$0.50/M tokens
Web search$0.01/search
Chat with Claude Opus 4.8Go to model
Chat with GPT 4.1Go to model
Frequently Asked Questions: Claude Opus 4.8 vs GPT 4.1▼

Which is better, Claude Opus 4.8 or GPT 4.1?

▼

Based on the Capability Index, Claude Opus 4.8 scores higher (89.2 vs 70.4). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.

Which is cheaper, Claude Opus 4.8 or GPT 4.1?

▼

GPT 4.1 has a lower blended cost. Claude Opus 4.8: $5.00 input / $25.00 output. GPT 4.1: $2.00 input / $8.00 output.

Which has a larger context window, Claude Opus 4.8 or GPT 4.1?

▼

GPT 4.1 has a larger context window: Claude Opus 4.8 supports 1M tokens vs GPT 4.1 at 1M tokens.

Do both Claude Opus 4.8 and GPT 4.1 support vision?

▼

Yes, both Claude Opus 4.8 and GPT 4.1 support vision/image input.

Which has better coding performance, Claude Opus 4.8 or GPT 4.1?

▼

Claude Opus 4.8 scores higher on SWE-bench Verified: Claude Opus 4.8 resolves 89% vs GPT 4.1 at 49%.

What are the key differences between Claude Opus 4.8 and GPT 4.1?

▼

Key differences: Claude Opus 4.8 has a notably higher capability index (18.8 point gap); GPT 4.1 is significantly cheaper; only Claude Opus 4.8 offers extended reasoning mode. 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 Claude Opus 4.8 and GPT 4.1 for free on idapt.app to see which performs better for your specific needs.

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