Claude Opus 5 vs GPT-6 Sol
Claude Opus 5 and GPT-6 Sol are closely matched at 54.8 and 49.4 on the LLM Stats Score. GPT-6 Sol is 2.5x cheaper per token.
Anthropic · OpenAI · Updated for 2026
Which is better?
Claude Opus 5 and GPT-6 Sol are closely matched on the overall LLM Stats Score at 54.8 and 49.4.
In the 3 individual benchmarks reported for both models, Claude Opus 5 wins 2; this is a narrower head-to-head signal than the composite indexes.
On price, GPT-6 Sol is roughly 2.5x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
GPT-6 Sol also accepts a larger context window (1,050,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Claude Opus 5
- you value its reported benchmark strengths — it wins 2 of 3 exact shared results
Choose GPT-6 Sol
- cost matters — it's about 2.5x cheaper per token
- you process long inputs — it offers a 1,050,000 token context window
- you want the most recent training data — it shipped Sep 2026
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
13 reported for Claude Opus 5 · 5 for GPT-6 Sol
Claude Opus 5 outperforms in 2 benchmarks (FrontierCode 1.1, OSWorld 2.0), while GPT-6 Sol is better at 0 benchmarks.
Claude Opus 5 shows notably better performance in the majority of benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Claude Opus 5 ($5.00/1M tokens) is 2.5x more expensive than GPT-6 Sol ($2.00/1M tokens).
For output processing, Claude Opus 5 ($25.00/1M tokens) is 2.5x more expensive than GPT-6 Sol ($10.00/1M tokens).
In conclusion, Claude Opus 5 is more expensive than GPT-6 Sol.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
GPT-6 Sol accepts 1,050,000 input tokens compared to Claude Opus 5's 1,000,000 tokens. Both models can generate responses up to 128,000 tokens.
Input capabilities
Documented input modalities across available providers
Both Claude Opus 5 and GPT-6 Sol support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude Opus 5
GPT-6 Sol
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Claude Opus 5 was released on 2026-07-24, while GPT-6 Sol was released on 2026-09-22.
GPT-6 Sol is 2 months newer than Claude Opus 5.
Jul 24, 2026
2 months ago
Sep 22, 2026
0 days ago
2mo newerKnowledge Cutoff
When training data ends
GPT-6 Sol has a documented knowledge cutoff of 2026-04-20, while Claude Opus 5's cutoff date is not specified.
We can confirm GPT-6 Sol's training data extends to 2026-04-20, but cannot make a direct comparison without Claude Opus 5's cutoff date.
—
Apr 2026
Provider Availability
Claude Opus 5 is available from Anthropic, DeepInfra. GPT-6 Sol is available from OpenAI.
Claude Opus 5
GPT-6 Sol
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude Opus 5 and GPT-6 Sol side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Opus 5 vs GPT-6 Sol.