Models

Claude Opus 4.8 vs GPT 4o 2024 11-20

Compare Claude Opus 4.8 from Anthropic and GPT 4o 2024 11-20 from OpenAI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

AnthropicClaude Opus 4.8OpenAIGPT 4o 2024 11-20
Anthropic logo
Claude Opus 4.8
Anthropic · text, image, pdf → text

Claude Opus 4.8 is Anthropic’s newest and most powerful publicly available model. It is suitable for the most complex tasks. It is Anthropic’s strongest model for complex reasoning, long-horizon agent programming, and highly autonomous work.claude-opus-4-8 does not display thought content by default; you need to set the additional parameter "display": "summarized" to enable it

Input$5 /M
Output$25 /M
Cache read$0.5 /M
OpenAI logo
GPT 4o 2024 11-20
OpenAI · text, image → text

The latest version of the GPT-4o model; it is recommended to use this version, as it is currently smarter than the regular 4o.

Input$2.5 /M
Output$10 /M
Cache read$1.25 /M

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

Claude Opus 4.8
GPT 4o 2024 11-20
Input /M
$5
$2.5
Output /M
$25
$10
Cache read /M
$0.5
$1.25
Context length
1,000,000
128,000
Max output
128,000
16,384
Time to First Token
1.1 s
0.6 s
Throughput
82.6 tok/s
60.7 tok/s
Modalities
textimagepdf
textimage
Supported Parameters
thinkingtoolsfunction callingstructured outputs
API Formats
chat_completions · claude_api
Released
May 28, 2026
November 20, 2024

Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

claude-opus-4-8gpt-4o-2024-11-20

Tokens / day

-

Requests / day

-

Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

claude-opus-4-8gpt-4o-2024-11-20

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

LMArena Benchmarks

LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.

Text
claude-opus-4-8gpt-4o-2024-11-20
1280136014401520
Overall
13351473
Coding
13611527
Math
13091474
Hard prompts
13271503
Instruction following
13181477
Multi-turn
13271495
Creative writing
13261465
Longer query
13381499
Chinese
13291523
English
13481480
Vision
claude-opus-4-8gpt-4o-2024-11-20
11001160122012801340
Overall
11191279
OCR
12941294
Diagram
13091309
Homework
13201320

Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.

Cost calculator

Estimate your monthly bill for the same workload on each model.

GPT 4o 2024 11-20
$300 /mo
Claude Opus 4.8
$675 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

Which is cheaper: Claude Opus 4.8, GPT 4o 2024 11-20?

GPT 4o 2024 11-20: $10/M output tokens; Claude Opus 4.8: $25/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

Claude Opus 4.8: 1527; GPT 4o 2024 11-20: 1361 (LMArena coding leaderboard).

Which responds faster?

GPT 4o 2024 11-20: 0.6s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.

How large is each context window?

Claude Opus 4.8 accepts 1,000,000 and GPT 4o 2024 11-20 accepts 128,000 input tokens. Maximum output per request is 128,000 tokens on Claude Opus 4.8 and 16,384 tokens on GPT 4o 2024 11-20.

Which one generates tokens faster?

Claude Opus 4.8 at 82.6 tok/s and GPT 4o 2024 11-20 at 60.7 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

Claude Opus 4.8 accepts text, image and PDF input and supports thinking, tool calling, function calling and structured outputs; GPT 4o 2024 11-20 accepts text and image input.

Can I call Claude Opus 4.8 and GPT 4o 2024 11-20 with the same API key?

Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.

Popular comparisons

Related model match-ups readers also look at.