Claude Opus Latest vs GPT-4o
API pricing, context window and capabilities for Claude Opus Latest and GPT-4o, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.
Verdict
computed from the published numbersClaude Opus Latest wins on context window. GPT-4o wins on price. Benchmark data is unavailable for one or both models.
Price
GPT-4o
Terminal-Bench
Not called
Intelligence
Not called
Context window
Claude Opus Latest
Key takeaways
who wins on what, from the published numbersClaude Opus Latest wins
- Larger context window (1M vs 131K)
- Higher max output (128K vs 16K)
- Has reasoning mode
- Has web search
GPT-4o wins
- Cheaper input ($4.00 vs $2.50 /1M)
- Cheaper output ($20.00 vs $10.00 /1M)
- More serving providers (1 vs 6)
- Supports audio
Cheaper overall
GPT-4o
$2.50 + $10.00 /1M
Larger context
Claude Opus Latest
1M
More providers
GPT-4o
6 providers
Pricing & specs
cheapest listed route · per 1M tokensOn-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day.
| Claude Opus Latest | GPT-4o | |
|---|---|---|
| Input $/1M | $4.00OpenRouter routed quote | $2.50via OpenAI best |
| Output $/1M | $20.00OpenRouter routed quote | $10.00via OpenAI best |
| Context window | 1M best | 131K |
| Max output | 128K best | 16K |
| Serving providers | 1 | 6 best |
| Date | Released Jul 6, 2026 | Released May 13, 2024 |
Benchmarks
Benchmark scores, side by side| Claude Opus Latest | GPT-4o | |
|---|---|---|
| Intelligence | Not available | 8.4 |
| GPQA Diamond | Not available | 54% |
| Output speed | Not available | 150 t/s |
| Latency (TTFT) | Not available | 0.79s |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
Claude Opus Latest
via OpenRouter
$40
GPT-4o
via Gmi
$23
Capabilities
feature support, side by side| Feature | Claude Opus Latest | GPT-4o |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | — |
| Audio | — | ✓ |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | ✓ | — |
Related comparisons
Frequently asked questions
Which is cheaper, Claude Opus Latest or GPT-4o?
GPT-4o is cheaper for input ($4.00 vs $2.50 per 1M tokens) from OpenAI. GPT-4o is cheaper for output ($20.00 vs $10.00 per 1M tokens) from OpenAI.
What is the context window difference between Claude Opus Latest and GPT-4o?
Claude Opus Latest has a 1M-token context window and GPT-4o has 131K tokens, so Claude Opus Latest can take a larger prompt.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
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