Claude Opus 4.6 vs GPT 5.5

What actually differs between Claude Opus 4.6 and GPT 5.5 on Tokenator: context, output limit, image input, usage multiplier and current availability.

Specification table

Both models are served through the same OpenAI-compatible Tokenator endpoint — switching between them means changing the model field in your request. The table below lists only the attributes Tokenator takes from its own routing configuration, with no editorial guesswork.

AttributeClaude Opus 4.6GPT 5.5
API IDclaude-opus-4-6gpt-5.5
Model vendoranthropicopenai
TypeText model (chat / completions)Text model (chat / completions)
Context window1M tokens1.05M tokens
Max output128K tokens128K tokens
Image inputyesyes
Tokenator usage multiplier1.8×1.8×
API formats/v1/chat/completions /v1/responses /v1/messages/v1/chat/completions /v1/responses /v1/messages
Current statusavailableavailable

Quality on available benchmarks

Values come from the Artificial Analysis data loaded into the Tokenator catalog for these models. A dash means no data is loaded for that index.

MetricClaude Opus 4.6GPT 5.5
Intelligence index43.5
Coding index60.9
Agentic index30.4

Differences in purpose

Claude Opus 4.6

Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks.

GPT 5.5

GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks.

Both IDs work in any tool that supports a custom base URL — see the integrations list.

Token usage

Tokenator deducts (input + output) × model multiplier from the key limit. Claude Opus 4.6 has a multiplier of 1.8×, GPT 5.5 — 1.8×. A range means several upstream providers serve the model at different costs, so the final coefficient depends on which one handled the request.

See the API documentation for details on counting.

How to switch between the models

Request to Claude Opus 4.6
curl https://api.tokenator.top/v1/chat/completions \
  -H "Authorization: Bearer sk-your-tokenator-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-opus-4-6",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
Request to GPT 5.5
curl https://api.tokenator.top/v1/chat/completions \
  -H "Authorization: Bearer sk-your-tokenator-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.5",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

FAQ

Does connecting Claude Opus 4.6 differ from GPT 5.5?

No: same base URL, same key — only the model field changes.

Can one key use both models?

Yes, if both are in the key's allowed-model list. The list is visible in your account.

What happens if a model is unavailable?

Tokenator fails the request over to the next upstream provider for the same model by priority. With no active providers the request returns an error — current state is on the status page.