Side by side
Claude Opus 4.5 vs GPT-5.4 Image 2
Source: OpenRouter (live)
Live figures
The numbers
Best value in each row is highlighted. “Not declared” means the provider does not advertise the feature on its listing.
| Attribute | ||
|---|---|---|
| Input priceUSD per 1M tokens | $5.00 (best) | $8.00 |
| Output priceUSD per 1M tokens | $25.00 | $15.00 (best) |
| Blended price75% in / 25% out | $10.00 | $9.75 (best) |
| Vs. market median | 12.5× dearer | 12.2× dearer |
| Value rankcheapest = 1 | #390 | #380 (best) |
| Context windowtokens | 200K | 272K (best) |
| Max outputtokens | 64K | 128K (best) |
| Input modalities | file, image, text | image, text, file |
| Output modalities | text | image, text |
| Tool calling | Declared | Not declared |
| Reasoning | Declared | Declared |
| Structured output | Declared | Declared |
| Listed on OpenRouter | 2025-11-24 | 2026-04-21 (best) |
Blended price assumes a 3:1 input-to-output token mix. Median is across all 417 priced models.
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What the numbers say
- OpenAI: GPT-5.4 Image 2 is the cheapest here at $9.75/M blended — 1.0× less than Anthropic: Claude Opus 4.5.
- OpenAI: GPT-5.4 Image 2 offers the largest context window (272K tokens) versus 200K for Anthropic: Claude Opus 4.5.
- Tool calling is declared for Anthropic: Claude Opus 4.5 only.
Models
Model pages
Full pricing history, capabilities and alternatives for each model in this comparison.
Anthropic
$10.00
/M blended
OpenAI
$9.75
/M blended
More comparisons
Other head-to-heads
- Claude vs GPT-5: which frontier model should you pay for?
Anthropic's flagship Claude against OpenAI's GPT-5 line on price, context and declared capabilities, with live figures.
- Claude Sonnet vs GPT-5 Mini: the mid-tier workhorses
The two models most production apps actually run. How the price gap compares to the capability gap.
- Gemini vs GPT-5: Google's flagship against OpenAI's
Gemini's very long context and multimodal input against GPT-5's ecosystem and pricing.
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