GPT-6 Luna vs Qwen 3.8 Flash Next

Pick a route and service tier under each model. Prices, the calculator and the verdicts follow your choice.

GPT-6 Luna
Qwen 3.8 Flash Next

At a glance

Generated from the rows below

Choose GPT-6 Luna for

  • The lowest cost per typical request ($0.0002)
  • The largest context window: 1,050,000 tokens

Choose Qwen 3.8 Flash Next for

No clear lead on the rows below.

Overview

Context window
1.05Mtokens (best)
1.049Mtokens
Max output
128Ktokens
Not published
Takes
Text, Image
Text, Image
Returns
Text
Text
Routes on Phaseo
2 providers
None
Released
22 Sept 2026
26 Aug 2026

Pricing

Prices on the route and tier chosen under each model

OpenAI · StandardRunInfra listing, not routed by Phaseo · Standard
Input
from $0.10/ 1M tokensInput ≤ 272K$0.10Input > 272K$0.20
$0.12/ 1M tokens
Output
from $0.00/ 1M tokensInput > 272K$0.00Input ≤ 272K$0.00
$0.40/ 1M tokens
Cache read
from $0.00/ 1M tokensInput > 272K$0.00Input ≤ 272K$0.01
$0.01/ 1M tokens
Cache write
from $0.00/ 1M tokensInput > 272K$0.00Input ≤ 272K$0.00
No write fee listed
Typical request2K tokens in, 500 out
$0.0002 (best)
$0.0004

What will it cost?

Estimate a month of requests on the route and tier chosen for each model

ModelPer requestPer month
GPT-6 LunaOpenAI · Standard$0.0002$6.00
Qwen 3.8 Flash NextRunInfra · Standard$0.0004$13.20

Uses the route and tier chosen under each model, over 30 days. Cached input is billed at the cache-read rate.

Performance

Live gateway traffic

Latency p50last 24 hours
1.34 s
No traffic in the last 5 days
Throughput p50last 24 hours
16.8 tps
No traffic in the last 5 days
Requests, last 24 hours
3
None in the last 24 hours

Activity

Tokens sent through Phaseo each day over the last 30 days

Tokens, last 30 days
303K
No traffic through Phaseo in the last 30 days
Per day
142K
15 Oct13 Nov
Input
282K
–
Output
13.4K
–
Reasoning
7.63K
–
Requests
279
–

Features

Features from the parameters Phaseo routes support

Tool calling
Yes
No route data
Structured outputs
Yes
No route data
Reasoning effort
Yes
No route data
Web search
Not listed
No route data
Prompt cachingon the chosen route
Yes
Yes
Quantisationon the chosen route
Not stated
Not stated

Benchmarks

Only results that two or more of the selected models report get a row

Compare at effort

Artificial Analysis Intelligence Index Independent

Higher is better · at Max effort · 1 of 2 models tested

GPT-6 Luna38.1
Qwen 3.8 Flash Next39.8

Where they rank

The five leaders on each capability index, then the compared models. Each model at its best-scoring setting.

Artificial Analysis Intelligence Index60 models ranked

  1. #1Claude Fable 5.264.6
  2. #2Claude Opus 5.559.1
  3. #3GPT-6 Astra56.9
  4. #4GPT-6.1 Sol54.6
  5. #5Claude Sonnet 5.554.5
  6. #28Qwen 3.8 Flash Next28.6
  7. #30GPT-6 Luna27.9

Artificial Analysis Coding Index171 models ranked

  1. #1Claude Fable 5.181.6
  2. #2GPT 5.6 Sol78.3
  3. #3Claude Opus 578.0
  4. #4GPT-6 Astra77.1
  5. #5Grok 4.676.8
  6. #17Qwen 3.8 Flash Next73.1

Artificial Analysis Agentic Index112 models ranked

  1. #1Claude Fable 5.157.9
  2. #2Claude Opus 556.5
  3. #3Qwen 3.8 Max 090256.0
  4. #4Muse Spark 1.355.5
  5. #5Qwen 3.8 Flash Next53.6

Epoch Capabilities Index167 models ranked

  1. #1Claude Fable 5.2173.4
  2. #2Gemini 4 Carbon169.8
  3. #3GPT-6 Astra169.0
  4. #4Claude Opus 5.5168.5
  5. #5GPT-6.1 Sol168.5
  6. #35GPT-6 Luna156.4
Cost
Artificial Analysis Evaluation Cost (USD)matched by effort level · lower is better
$122.05 (best)
$362.72
Artificial Analysis Evaluation Cost (USD)matched by effort level · lower is better
$136.06 (best)
$390.27
General
27.9
28.6 (best)
317.1
320.2 (best)

Lab-reported results come from each lab’s own launch materials and may use different settings, so none is marked best. Independent results come from third-party evaluators.

Providers

Where each model runs on Phaseo, with standard-tier prices per 1M tokens. Providers that serve more of these models come first.

$0.10 in · $0.00 out1.05M context · Standard, Batch, Flex, Priority
—
$0.10 in · $0.50 out922K context
—
Also listed, not routed
2 providers
1 provider

To price the whole page on one of these providers, pick it under the model’s name at the top.

Details

Knowledge cutoff
May 2026
Not published
Status
Available
Available
Licence
Proprietary
Qwen Community License 1.0
Subscription plans
7 plansChatGPT Business, ChatGPT Business Premium, ChatGPT Enterprise…
None mapped
API docs
Not published
Not published

GPT-6 Luna vs Qwen 3.8 Flash Next: side-by-side summary

GPT-6 Luna is from OpenAI. It has a 1,050,000-token context window. On its cheapest route it costs $0.10 per 1M input tokens and $0.00 per 1M output tokens.

Qwen 3.8 Flash Next is from Qwen. It has a 1,048,576-token context window. On its cheapest route it costs $0.12 per 1M input tokens and $0.40 per 1M output tokens.

GPT-6 Luna model details, providers and pricingQwen 3.8 Flash Next model details, providers and pricing

GPT-6 Luna vs Qwen 3.8 Flash Next at a glance

GPT-6 Luna and Qwen 3.8 Flash Next compared on price, context window and benchmark score
AttributeGPT-6 LunaQwen 3.8 Flash Next
LabOpenAIQwen
Input price per 1M tokens$0.10$0.12
Output price per 1M tokens$0.00$0.40
Context window1,050,000 tokens1,048,576 tokens
Max output128,000 tokensNot listed
Artificial Analysis Intelligence Index27.9 (#30)28.6 (#28)

Prices are each model's cheapest standard route on Phaseo. Benchmark ranks use each model's best-scoring evaluated setting.

Frequently asked questions

Which is cheaper, GPT-6 Luna or Qwen 3.8 Flash Next?

GPT-6 Luna is cheaper for both input and output tokens. GPT-6 Luna costs $0.10 per 1M input tokens and $0.00 per 1M output tokens; Qwen 3.8 Flash Next costs $0.12 and $0.40, each on its cheapest standard route on Phaseo.

Which has the longer context window, GPT-6 Luna or Qwen 3.8 Flash Next?

GPT-6 Luna has the longer context window at 1,050,000 tokens, compared with 1,048,576 tokens for Qwen 3.8 Flash Next.

Which scores higher on the Artificial Analysis Intelligence Index, GPT-6 Luna or Qwen 3.8 Flash Next?

Qwen 3.8 Flash Next scores higher on the Artificial Analysis Intelligence Index. Qwen 3.8 Flash Next scores 28.6, ranked #28 of 60. GPT-6 Luna scores 27.9, ranked #30 of 60.

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