Alternatives · 15 models compared · checked 17 Aug 2026
Claude Opus 4.1 alternatives: 15 models in or near grid G3
The closest model to Claude Opus 4.1 on the atlas is Claude Opus 4, in the same square, at $15.00 per 1M input tokens against Claude Opus 4.1’s . 13 of the 15 nearest models are cheaper on input; the cheapest is Claude Haiku 4.5 at $1.00. We rank by position on the atlas, not by capability, because we hold no capability data.
$15.00
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Cite this page
ModelsAtlas. “Claude Opus 4.1 alternatives: 15 models in or near grid G3”. Retrieved 17 Aug 2026. https://modelsatlas.com/models/anthropic/claude-opus-4-1/alternatives
Where the alternatives sit
Each square is a price band (A–H) × a context band (1–6). How the grid works
Same squareGRIDG32 modelsClaude Opus 4 and o1
Claude Opus 4.1Its 15 nearest modelsOther modelsOpen weights
View the map as a table (6 squares)
| Square | Price band | Context band | Models |
|---|---|---|---|
| GRIDE3 | $1–3 | 128–256K | Claude Haiku 4.5, Grok Build 0.1, o3 Mini High, o4 Mini, o4 Mini High, Nano Banana Pro (Gemini 3 Pro Image), o3, Command A |
| GRIDF3 | $3–10 | 128–256K | Claude Sonnet 4, Claude Opus 4.5 |
| GRIDF4 | $3–10 | 256K–1M | GPT Chat Latest |
| GRIDG2 | $10–30 | 32–128K | GPT-4 Turbo |
| GRIDG3 | $10–30 | 128–256K | Claude Opus 4.1, Claude Opus 4, o1 |
| GRIDG4 | $10–30 | 256K–1M | GPT-5 Image |
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 Claude Opus 4.1 | Output / 1M | Context | |
|---|---|---|---|---|---|---|---|---|
| — | Claude Opus 4.1Anthropic · the model you’re replacing | GRIDG3 | Baseline | $15.00 | — | $75.00 | 200K | |
| 1 | Claude Opus 4Anthropic | GRIDG3 | Same maker, same square, same input price | $15.00 | same | $75.00 | 200K | Compare → |
| 2 | o1OpenAI | GRIDG3 | Same square, same input price | $15.00 | same | $60.00 | 200K | Compare → |
| 3 | Claude Sonnet 4Anthropic | GRIDF3 | Same maker, neighbouring square F3, 80% cheaper input | $3.00 | −80% | $15.00 | 200K | Compare → |
| 4 | Claude Opus 4.5Anthropic | GRIDF3 | Same maker, neighbouring square F3, 67% cheaper input | $5.00 | −67% | $25.00 | 200K | Compare → |
| 5 | GPT-4 TurboOpenAI | GRIDG2 | Neighbouring square G2, 33% cheaper input | $10.00 | −33% | $30.00 | 128K | Compare → |
| 6 | GPT-5 ImageOpenAI | GRIDG4 | Neighbouring square G4, 33% cheaper input, 2× the context | $10.00 | −33% | $10.00 | 400K | Compare → |
| 7 | Claude Haiku 4.5Anthropic | GRIDE3 | Same maker, 2 squares away (E3), 93% cheaper input | $1.00 | −93% | $5.00 | 200K | |
| 8 | Grok Build 0.1xAI | GRIDE3 | 2 squares away (E3), 93% cheaper input, 1.3× the context | $1.00 | −93% | $2.00 | 256K | |
| 9 | o3 Mini HighOpenAI | GRIDE3 | 2 squares away (E3), 93% cheaper input | $1.10 | −93% | $4.40 | 200K | |
| 10 | o4 MiniOpenAI | GRIDE3 | 2 squares away (E3), 93% cheaper input | $1.10 | −93% | $4.40 | 200K | |
| 11 | o4 Mini HighOpenAI | GRIDE3 | 2 squares away (E3), 93% cheaper input | $1.10 | −93% | $4.40 | 200K | |
| 12 | Nano Banana Pro (Gemini 3 Pro Image)Google | GRIDE3 | 2 squares away (E3), 87% cheaper input | $2.00 | −87% | $12.00 | 131K | |
| 13 | o3OpenAI | GRIDE3 | 2 squares away (E3), 87% cheaper input | $2.00 | −87% | $8.00 | 200K | |
| 14 | Command ACohere | GRIDE3 | 2 squares away (E3), 83% cheaper input, 1.3× the context | $2.50 | −83% | $10.00 | 256K | |
| 15 | GPT Chat LatestOpenAI | GRIDF4 | 2 squares away (F4), 67% cheaper input, 2× the context | $5.00 | −67% | $30.00 | 400K |
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 | |
|---|---|---|---|
| GPT-5 ImageOpenAI | $10.00 | 400K | Compare |
| Grok Build 0.1xAI | $1.00 | 256K | |
| Command ACohere | $2.50 | 256K | |
| GPT Chat LatestOpenAI | $5.00 | 400K | |
| GPT-5.4 Image 2OpenAI | $8.00 | 272K |
Free alternatives
| Model | Input / 1M | Context | |
|---|---|---|---|
| Lyria 3 Clip PreviewGoogle | Free | 1.05M | |
| Lyria 3 Pro PreviewGoogle | Free | 1.05M |
Compare Claude Opus 4.1 head to head
Questions
What is the best alternative to Claude Opus 4.1?
Claude Opus 4 ranks first: same maker, same square, same input price. Input is $15.00 per 1M tokens against $15.00 for Claude Opus 4.1. Ranking is by position on the atlas, not by quality.
What is the cheapest alternative to Claude Opus 4.1?
Claude Haiku 4.5 at $1.00 per 1M input tokens, 93% less than Claude Opus 4.1, among the 15 closest.
Is there an open-weight alternative to Claude Opus 4.1?
None of the 15 closest is marked open-weight in our records.
Which alternative has a larger context window?
GPT-5 Image, GPT Chat Latest, Grok Build 0.1 and Command A hold more than Claude Opus 4.1's 200K; the largest is GPT-5 Image at 400K.
How are alternatives ranked?
By distance on the atlas grid from Claude Opus 4.1's square G3: 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 Claude Opus 4.1 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 Claude Opus 4.1?
- What is the cheapest alternative to Claude Opus 4.1?
- Is there an open-weight alternative to Claude Opus 4.1?