Anthropic: Claude Opus 4.5 vs OpenAI: GPT-4.1
Side-by-side specs, pricing, and benchmarks. Pick a winner for your team's use case.
Use it in a Space
Spin up a Switchy Space with either model — your whole team @-mentions it with shared context, pooled credits, one memory.
Anthropic: Claude Opus 4.5OpenAI: GPT-4.1
Input $/Mtok$5.00 · $2.00
Output $/Mtok$25.00 · $8.00
Anthropic: Claude Opus 4.5OpenAI: GPT-4.1
Anthropic: Claude Opus 4.5200K tokens
OpenAI: GPT-4.11048K tokens
Bars use square-root scaling so a 1M-token window doesn't crush a 200K one.
Anthropic: Claude Opus 4.5OpenAI: GPT-4.1
2025-11-24
2025-04-14
2025-03-15today
Anthropic: Claude Opus 4.5
- Provider
- anthropic
- Context
- 200k
- Input $/Mtok
- $5.00
- Output $/Mtok
- $25.00
- Max output
- 64000
- Modalities
- file, image, text
OpenAI: GPT-4.1
- Provider
- openai
- Context
- 1048k
- Input $/Mtok
- $2.00
- Output $/Mtok
- $8.00
- Max output
- —
- Modalities
- image, text, file
Price delta
Anthropic: Claude Opus 4.5 is $3.00/Mtok more expensive than OpenAI: GPT-4.1 on input. Output: Anthropic: Claude Opus 4.5 is $17.00/Mtok more expensive than OpenAI: GPT-4.1.
Which to pick
Pick **Claude Opus 4.5** for the hardest reasoning turns where output quality dominates the cost calculation — long-form writing, architectural review, multi-step debugging, dense legal or financial synthesis. At $15 in / $75 out per Mtok it is the most expensive option here, but on the questions where the answer matters more than the bill, Anthropic's frontier is what most evaluators reach for first.
Pick **GPT-4.1** when you need its 1M-token context window or when the per-Mtok price gap (Opus is roughly 7.5x more expensive on input, 9.4x on output) is a deal-breaker. GPT-4.1 holds its own on most general-purpose work and the 5x context advantage makes it the practical default for full-repo ingestion or long meeting-transcript synthesis.