GPT-4o vs R1

DeepSeek R1 for technical reasoning benchmarks, GPT-4o for production coding and OpenAI ecosystem.

Pricing source: live OpenRouter model catalog (`/api/v1/models`).

Model A

GPT-4o

OpenAItext+image+file->text
Context Window128K
Knowledge CutoffMay 13, 2024
Open model page
Model B

R1

DeepSeektext->text
Context Window64K
Knowledge CutoffJan 20, 2025
Open model page

Editorial Verdict

GPT-4o is the versatile generalist; DeepSeek R1 is the reasoning specialist.

GPT-4o and DeepSeek R1 are fundamentally different — GPT-4o is a versatile general-purpose flagship; DeepSeek R1 is a reasoning specialist. For general-purpose tasks and multimodal, GPT-4o wins. For hard math and science reasoning, DeepSeek R1 significantly outperforms GPT-4o.

GPT-4o
  • Versatile general-purpose model with multimodal across text, images, audio, and video
  • Mature API ecosystem with reliable function calling and enterprise support
  • Better at coding and instruction following than at hard math reasoning

Best for: General-purpose production applications and multimodal workflows

R1
  • Significantly outperforms GPT-4o on hard math, science, and competitive programming
  • Transparent reasoning chain visible in outputs
  • Open weights for self-hosting with full data control

Best for: Hard math, science, and competitive programming reasoning tasks

Pricing sourced from OpenRouter — updates as their catalog changes.

Pricing Comparison

All values pull from OpenRouter and update as their catalog changes.

MetricGPT-4oR1Winner
Input (per 1M tokens)$2.50$0.70🏆 R1
Output (per 1M tokens)$10.00$2.50🏆 R1
Request feeN/AN/AN/A
Image feeN/AN/AN/A

Cost Estimator

Estimate monthly billing using real OpenRouter prices.

GPT-4o Total

$237.5

R1 Total

$62
Estimated Monthly Savings: $175.5 with R1

Capability Signals

Scores are directional estimates from model metadata — not official benchmark results.

GPT-4oMMLU Signal (Reasoning)R1
69%
82%
GPT-4oHumanEval Signal (Coding)R1
76%
71%
GPT-4oAgentic Tooling SignalR1
84%
79%
GPT-4oMultimodal SignalR1
78%
64%

Capabilities Matrix

Feature highlights for architecture and production fit.

GPT-4o Strengths

  • Supports image inputs for multimodal analysis workflows.
  • Strong tool-calling and structured response support.
  • Balanced general-purpose profile for chat, extraction, and automation tasks.

R1 Strengths

  • Strong tool-calling and structured response support.
  • Balanced general-purpose profile for chat, extraction, and automation tasks.

API Implementation

Quick start snippets for each provider style.

OpenAI (Python)

from openai import OpenAI

client = OpenAI()
response = client.chat.completions.create(
  model="openai/gpt-4o",
  messages=[{"role": "user", "content": "Hello"}]
)

print(response.choices[0].message.content)

DeepSeek (Python)

from openai import OpenAI

client = OpenAI()
response = client.chat.completions.create(
  model="deepseek/deepseek-r1",
  messages=[{"role": "user", "content": "Hello"}]
)

print(response.choices[0].message.content)

Choose GPT-4o when...

  • Your application includes visual reasoning and image understanding tasks.
  • You rely on function calling, tool chaining, and structured output contracts.
  • You want a balanced default for mixed chat and workflow automation workloads.

Choose R1 when...

  • You rely on function calling, tool chaining, and structured output contracts.
  • You want a balanced default for mixed chat and workflow automation workloads.
  • You can measure quality with your own benchmark and prompt set.

Frequently Asked Questions

Practical checks before selecting a production model.

Which model is better for coding?

Coding preference depends on your stack and tool-calling needs. Compare the coding signal row, test with your repository tasks, and validate latency in your target region.

Which model is cheaper at scale?

Input and output token pricing can diverge by workload profile. Use the estimator with your monthly request count and token mix to get a realistic cost difference.

Are these official benchmark numbers?

Pricing is live from OpenRouter. Benchmark rows are ModelsAtlas metadata-based signals and should be treated as directional guidance, not official leaderboard scores.

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