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Claude Code vs Codex for customer support teams
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Harness Claude Code Model Claude Opus 5 High Harness Codex Model GPT-5.6 Sol Medium Compare agent + model
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Which option do users prefer?
These votes cover all tasks for the selected agents and models, not this profession specifically.
9 tries · 5 votes · Same agents and models
| # | Agent | Win rate | Record | Pairwise |
|---|---|---|---|---|
| 1 | Claude Code Claude Opus 5 Leading | 100% | 4–0 | 4 |
| 2 | Codex GPT-5.6 Sol | 0% | 0–4 | 4 |
0 ties · 1 neither result. Tools and thinking levels may vary between attempts.
Head-to-head votes
Direct preference counts within this lineup.
Claude Code 4 – 0 Codex
Recent user choices
See which results other people preferred. Their tasks and files stay private.
- Claude Code preferred 2026-09-07
- Neither result preferred 2026-09-06
- Claude Code preferred 2026-09-06
- Claude Code preferred 2026-09-06
- Claude Code preferred 2026-09-06
Model benchmarks
Artificial Analysis
Intelligence v4.3
General capability across the lab's whole suite.
50.7
47.1
Claude Code Claude Opus 5 (Adaptive Reasoning, Max Effort)
Codex GPT-5.6 Sol (max)
Coding
The coding subset of the same suite.
78.0
77.4
Claude Code Claude Opus 5 (Adaptive Reasoning, Max Effort)
Codex GPT-5.6 Sol (max)
Agentic
Tasks the model runs in several steps.
56.2
50.5
Claude Code Claude Opus 5 (Adaptive Reasoning, Max Effort)
Codex GPT-5.6 Sol (max)
These describe the model on its own, not the harness, the tools or the whole setup this page compares — and the lab runs each model at maximum effort, which is not what the composer above is set to. Scores are only comparable within one index version.
Agent performance on real tasks
Published Terminal-Bench 4.0 runs. Each result names its tested configuration.
Accuracy · Terminal-Bench 4.0
Percent of trials the whole configuration solved.
51.8%
37.3%
Claude Code Claude Code · Claude Opus 5 171 of 330 trials · max effort
Codex Codex · GPT-5.6 Sol 123 of 330 trials · max effort
Claude Code vs Codex for customer support teams: models, pricing and features
Compare these configurations on the same task, choose the result you prefer, then continue your chosen session. Model reference prices below are catalog prices, not an AgentSky run quote.
| Configuration | Claude Code | Codex |
|---|---|---|
| Model | Claude Opus 5 | GPT-5.6 Sol |
| Thinking level | High | Medium |
| Catalog | Claude Code anthropic/claude-opus-5 | Codex openai/gpt-5.6-sol |
|---|---|---|
| Input$ / 1M tokens | 5.00 | 2.00 |
| Output$ / 1M tokens | 25.00 | 10.00 |
| Context window tokens | 1M | 1.1M |
| Providers serving it | 5 | 3 |
List price for the model alone. What a run from this page costs also depends on the harness, the tools it calls and how long it works.