Alternatives · 15 models compared · checked 17 Aug 2026
GPT-5.6 Luna alternatives: 15 models in or near grid C6
The closest model to GPT-5.6 Luna on the atlas is GPT-6 Luna, in the same square, at $0.10 per 1M input tokens against GPT-5.6 Luna’s . 10 of the 15 nearest models are cheaper on input; the cheapest is Qwen3.7 Flash at $0.03. We rank by position on the atlas, not by capability, because we hold no capability data.
$0.20
observed We measured
- Source
- Our catalogue
- Retrieved
- 17 Aug 2026
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Cite this page
ModelsAtlas. “GPT-5.6 Luna alternatives: 15 models in or near grid C6”. Retrieved 17 Aug 2026. https://modelsatlas.com/models/openai/gpt-5-6-luna/alternatives
Where the alternatives sit
Each square is a price band (A–H) × a context band (1–6). How the grid works
Same squareGRIDC62 modelsGPT-6 Luna and Llama 4 Scout
Neighbouring squaresGRIDC512 modelsClaude Haiku 5.5, DeepSeek V4 Flash Vision Exp, Gemini 3.1 Flash Lite and 9 more
GPT-5.6 LunaIts 15 nearest modelsOther modelsOpen weights
View the map as a table (3 squares)
| Square | Price band | Context band | Models |
|---|---|---|---|
| GRIDB5 | <$0.10 | 1M | Qwen3.7 Flash |
| GRIDC5 | $0.10–0.30 | 1M | Claude Haiku 5.5, Muse Spark 1.2 Contributor, Muse Spark 1.3 Contributor, Qwen3.8 Flash, Qwen3.8 Omni Flash, Llama 4 Maverick, Qwen3.6 Flash, MiniMax-01, DeepSeek V4 Flash Vision Exp, Gemini 3.1 Flash Lite, Gemini 3.1 Flash Lite Preview, Qwen-Plus |
| GRIDC6 | $0.10–0.30 | >1M | GPT-5.6 Luna, GPT-6 Luna, Llama 4 Scout |
Top 15 alternatives
Ranked by steps away on the atlas, then cheaper before pricier, then input price
| # | Model | Grid | Why it fits | Input / 1M | vs GPT-5.6 Luna | Output / 1M | Context | |
|---|---|---|---|---|---|---|---|---|
| — | GPT-5.6 LunaOpenAI · the model you’re replacing | GRIDC6 | Baseline | $0.20 | — | $1.20 | 1.05M | |
| 1 | GPT-6 LunaOpenAI | GRIDC6 | Same maker, same square, 50% cheaper input | $0.10 | −50% | $0.50 | 1.05M | Compare → |
| 2 | Llama 4 ScoutMeta | GRIDC6 | Same square, 50% cheaper input | $0.10 | −50% | $0.30 | 1.31M | Compare → |
| 3 | Claude Haiku 5.5Anthropic | GRIDC5 | Neighbouring square C5, 50% cheaper input | $0.10 | −50% | $0.50 | 1M | |
| 4 | Muse Spark 1.2 ContributorMeta | GRIDC5 | Neighbouring square C5, 50% cheaper input | $0.10 | −50% | $0.20 | 1.05M | |
| 5 | Muse Spark 1.3 ContributorMeta | GRIDC5 | Neighbouring square C5, 50% cheaper input | $0.10 | −50% | $0.20 | 1.05M | |
| 6 | Qwen3.8 FlashQwen (Alibaba) | GRIDC5 | Neighbouring square C5, 25% cheaper input | $0.15 | −25% | $0.47 | 1M | |
| 7 | Qwen3.8 Omni FlashQwen (Alibaba) | GRIDC5 | Neighbouring square C5, 25% cheaper input | $0.15 | −25% | $0.47 | 1M | |
| 8 | Llama 4 MaverickMeta | GRIDC5 | Neighbouring square C5, 6% cheaper input | $0.19 | −6% | $0.65 | 1.05M | Compare → |
| 9 | Qwen3.6 FlashQwen (Alibaba) | GRIDC5 | Neighbouring square C5, 6% cheaper input | $0.19 | −6% | $1.13 | 1M | Compare → |
| 10 | MiniMax-01MiniMax | GRIDC5 | Neighbouring square C5, same input price | $0.20 | same | $1.10 | 1M | Compare → |
| 11 | DeepSeek V4 Flash Vision ExpDeepSeek | GRIDC5 | Neighbouring square C5, 8% pricier input | $0.22 | +8% | $0.65 | 1.05M | Compare → |
| 12 | Gemini 3.1 Flash LiteGoogle | GRIDC5 | Neighbouring square C5, 25% pricier input | $0.25 | +25% | $1.50 | 1.05M | |
| 13 | Gemini 3.1 Flash Lite PreviewGoogle | GRIDC5 | Neighbouring square C5, 25% pricier input | $0.25 | +25% | $1.50 | 1.05M | |
| 14 | Qwen-PlusQwen (Alibaba) | GRIDC5 | Neighbouring square C5, 30% pricier input | $0.26 | +30% | $0.78 | 1M | |
| 15 | Qwen3.7 FlashQwen (Alibaba) | GRIDB5 | 2 squares away (B5), 85% cheaper input | $0.03 | −85% | $0.13 | 1M |
What switching saves
3,000 input + 800 output tokens × 1,000 requests a day
Σ Derived from standard-tier prices; excludes caching and batch discounts. Use your own numbers →
Larger-context alternatives
| Model | Input / 1M | Context | |
|---|---|---|---|
| Llama 4 ScoutMeta | $0.10 | 1.31M | Compare |
| Grok 4.20xAI | $1.25 | 2M | |
| Grok 4.20 Multi-AgentxAI | $1.25 | 2M |
Free alternatives
| Model | Input / 1M | Context | |
|---|---|---|---|
| Lyria 3 Clip PreviewGoogle | Free | 1.05M | |
| Lyria 3 Pro PreviewGoogle | Free | 1.05M |
Compare GPT-5.6 Luna head to head
Questions
What is the best alternative to GPT-5.6 Luna?
GPT-6 Luna ranks first: same maker, same square, 50% cheaper input. Input is $0.10 per 1M tokens against $0.20 for GPT-5.6 Luna. Ranking is by position on the atlas, not by quality.
What is the cheapest alternative to GPT-5.6 Luna?
Qwen3.7 Flash at $0.03 per 1M input tokens, 85% less than GPT-5.6 Luna, among the 15 closest.
Is there an open-weight alternative to GPT-5.6 Luna?
None of the 15 closest is marked open-weight in our records.
Which alternative has a larger context window?
Llama 4 Scout hold more than GPT-5.6 Luna's 1.05M; the largest is Llama 4 Scout at 1.31M.
How are alternatives ranked?
By distance on the atlas grid from GPT-5.6 Luna's square C6: the same square first, then neighbouring squares. Within the same distance, cheaper models come before pricier ones, then the lowest input price wins. We hold no capability data, so we do not claim a model can do what GPT-5.6 Luna does, only that it costs and holds about the same. No vendor pays for position.
More alternatives
Keep going in your AI
Opens with this page as the source. We add nothing else to the prompt.
- What is the best alternative to GPT-5.6 Luna?
- What is the cheapest alternative to GPT-5.6 Luna?
- Is there an open-weight alternative to GPT-5.6 Luna?