Claude 3.7 Sonnet
Anthropic · text, image → text
Support for the thinking parameter through the original Claude SDK.
Input$3.3 /M
Output$16.5 /M
← ModelsClaude 3.7 Sonnet
GPT 5.6 Luna
Claude 3.7 Sonnet vs GPT 5.6 Luna
Compare Claude 3.7 Sonnet from Anthropic and GPT 5.6 Luna 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.
Claude 3.7 SonnetGPT 5.6 Luna+ Add model · 2/4
GPT 5.6 Luna
OpenAI · text, image → text
GPT-5.6 Luna is designed for cost-sensitive, high-volume workloads. It roughly corresponds to the nano model tier used in earlier GPT-5 families.
Input$0.2 /M
Output$1.2 /M
Cache read$0.02 /M
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
Claude 3.7 Sonnet
GPT 5.6 Luna
Input /M
$3.3
$0.2
Output /M
$16.5
$1.2
Cache read /M
-
$0.02
Context length
200,000
1,050,000
Max output
128,000
128,000
Time to First Token
0.6 s
5.1 s
Throughput
57.3 tok/s
47.6 tok/s
Modalities
textimage
textimage
Supported Parameters
thinkingtoolsfunction callingstructured outputs
toolsthinkingstructured outputs
API Formats
chat_completions · responses
Released
-
July 9, 2026
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-3-7-sonnetgpt-5.6-luna
Tokens / day
-
Requests / day
-
Performance Past 3 Days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
claude-3-7-sonnetgpt-5.6-luna
Throughput (tok/s)
-
TTFT (s)
-
Uptime (%)
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Cost calculator
Estimate your monthly bill for the same workload on each model.
GPT 5.6 Luna
$30.00 /mo
Claude 3.7 Sonnet
$446 /mo
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: Claude 3.7 Sonnet, GPT 5.6 Luna?
GPT 5.6 Luna: $1.2/M output tokens; Claude 3.7 Sonnet: $16.5/M. Use the cost calculator above to estimate your own workload.
Which responds faster?
Claude 3.7 Sonnet: 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 3.7 Sonnet accepts 200,000 and GPT 5.6 Luna accepts 1,050,000 input tokens. Maximum output per request is 128,000 tokens on Claude 3.7 Sonnet and 128,000 tokens on GPT 5.6 Luna.
Which one generates tokens faster?
Claude 3.7 Sonnet at 57.3 tok/s and GPT 5.6 Luna at 47.6 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 3.7 Sonnet accepts text and image input and supports thinking, tool calling, function calling and structured outputs; GPT 5.6 Luna accepts text and image input and supports tool calling, thinking and structured outputs.
Can I call Claude 3.7 Sonnet and GPT 5.6 Luna 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.
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