Claude Opus 4.8 vs MiniMax M3
Claude Opus 4.8 (2026) and MiniMax M3 (2026) are frontier-tier reasoning models from Anthropic and MiniMax. Claude Opus 4.8 ships a 1m-token context window, while MiniMax M3 ships a 1m-token context window. On SWE-bench Verified, Claude Opus 4.8 leads by 8.1 pts. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
MiniMax M3 is safer overall; choose Claude Opus 4.8 when coding workflow support matters.
Decision scorecard
Local evidence first| Signal | Claude Opus 4.8 | MiniMax M3 |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 1m | 1m |
| Cheapest output | $25/1M tokens | $2.40/1M tokens |
| Provider routes | 6 tracked | 1 tracked |
| Shared benchmarks | SWE-bench Verified leader | 5 shared |
Decision tradeoffs
- Claude Opus 4.8 holds a shared-benchmark lead on SWE-bench Verified, ahead by 8.1 points.
- Claude Opus 4.8 has broader tracked provider coverage for fallback and procurement flexibility.
- Claude Opus 4.8 uniquely exposes Computer use and Parallel agents in local model data.
- Local decision data tags Claude Opus 4.8 for Coding, RAG, and Agents.
- MiniMax M3 has the lower cheapest tracked output price at $2.40/1M tokens.
- Local decision data tags MiniMax M3 for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Claude Opus 4.8
$10,250
Cheapest tracked route/tier: Anthropic
MiniMax M3
$1,080
Cheapest tracked route/tier: MiniMax <=512K input tokens (standard)
Estimated monthly gap: $9,170. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Claude Opus 4.8 and MiniMax M3; plan for SDK, billing, or endpoint changes.
- MiniMax M3 is $22.60/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Computer use and Parallel agents before moving production traffic.
- No overlapping tracked provider route is sourced for MiniMax M3 and Claude Opus 4.8; plan for SDK, billing, or endpoint changes.
- Claude Opus 4.8 is $22.60/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Claude Opus 4.8 adds Computer use and Parallel agents in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-05-28 | 2026-06-01 |
| Context window | 1m | 1m |
| Parameters | — | — |
| Architecture | Decoder Only | Decoder Only |
| License | Proprietary | Proprietary |
| Openness | Proprietary | Proprietary |
| Commercial use | Commercial use: conditional | Commercial use: conditional |
| Knowledge cutoff | 2026-01 | - |
Pricing and availability
| Pricing attribute | Claude Opus 4.8 | MiniMax M3 |
|---|---|---|
| Input price | $5/1M tokens |
|
| Output price | $25/1M tokens |
|
| Providers |
Capabilities
| Capability | Claude Opus 4.8 | MiniMax M3 |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | Yes |
| Function calling | Yes | Yes |
| Tool use | Yes | Yes |
| Structured outputs | Yes | Yes |
| Code execution | Yes | Yes |
| IDE integration | No | No |
| Computer use | Yes | No |
| Parallel agents | Yes | No |
Benchmarks
| Benchmark | Claude Opus 4.8 | MiniMax M3 |
|---|---|---|
| SWE-bench Verified | 88.6 | 80.5 |
| SWE-bench Pro | 69.2 | 59.0 |
| Google-Proof Q&A | 93.6 | 92.9 |
| Terminal-Bench 2.1 | 74.6 | 66.0 |
| MCP-Atlas | 82.2 | 74.2 |
Deep dive
On shared benchmark coverage, SWE-bench Verified has Claude Opus 4.8 at 88.6 and MiniMax M3 at 80.5, with Claude Opus 4.8 ahead by 8.1 points; SWE-bench Pro has Claude Opus 4.8 at 69.2 and MiniMax M3 at 59, with Claude Opus 4.8 ahead by 10.2 points; Google-Proof Q&A has Claude Opus 4.8 at 93.6 and MiniMax M3 at 92.9, with Claude Opus 4.8 ahead by 0.7 points. The largest visible gap is 10.2 points on SWE-bench Pro, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint is close: both models cover vision, multimodal input, reasoning mode, function calling, and tool use. That makes context budget, benchmark fit, and provider maturity more important than a simple checklist. If your application depends on one integration detail, verify it against the provider route you plan to use, not just the base model listing.
For cost, Claude Opus 4.8 lists $5/1M input and $25/1M output tokens on the cheapest tracked provider, while MiniMax M3 lists tiered pricing: <=512K input tokens (standard) is $0.60/1M input and $2.40/1M output; >512K input tokens (limited) is $1.20/1M input and $4.80/1M output. A 70/30 input-output blend puts MiniMax M3 lower by about $9.86 per million blended tokens. For tiered rows, this cheapest-track view can understate interactive or fast-lane spend, so compare the tier you will actually use. Availability is 6 providers versus 1, so concentration risk also matters.
Choose Claude Opus 4.8 when coding workflow support and broader provider choice are central to the workload. Choose MiniMax M3 when coding workflow support and lower cheapest-tier input-token cost are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which has a larger context window, Claude Opus 4.8 or MiniMax M3?
Claude Opus 4.8 supports 1m tokens, while MiniMax M3 supports 1m tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Claude Opus 4.8 or MiniMax M3?
Claude Opus 4.8 lists $5/1M input and $25/1M output tokens on the cheapest tracked provider. MiniMax M3 lists tiered pricing: <=512K input tokens (standard) is $0.60/1M input and $2.40/1M output; >512K input tokens (limited) is $1.20/1M input and $4.80/1M output. Compare the tier you will actually use; cheap async pricing can overstate savings for interactive workflows. Provider discounts or batch pricing can still change the final bill.
Is Claude Opus 4.8 or MiniMax M3 open source?
Claude Opus 4.8 is listed under Proprietary. MiniMax M3 is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, Claude Opus 4.8 or MiniMax M3?
Both Claude Opus 4.8 and MiniMax M3 expose vision. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for multimodal input, Claude Opus 4.8 or MiniMax M3?
Both Claude Opus 4.8 and MiniMax M3 expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run Claude Opus 4.8 and MiniMax M3?
Claude Opus 4.8 is available on Anthropic, AWS Bedrock, GCP Vertex AI, Microsoft Foundry, and OpenRouter. MiniMax M3 is available on MiniMax. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-06-17. Data sourced from public model cards and provider documentation.